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Feldman MJ, Boudreau H, Tuan Anh L, Tsemo GB, Blount JP, Rozzelle CJ. Endovascular balloon usage in endoscopic third ventriculostomy for hydrocephalus during a national shortage: case series and technical note. Childs Nerv Syst 2024:10.1007/s00381-024-06361-4. [PMID: 38639802 DOI: 10.1007/s00381-024-06361-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 03/07/2024] [Indexed: 04/20/2024]
Abstract
Endoscopic third ventriculostomy (ETV) is a well-established surgical technique for treating hydrocephalus. Many providers have transitioned to utilizing the specialized Neuroballoon for the stoma dilation in ETV; however, these devices are intermittently unavailable during supply chain shortages. We present the experience of employing cardiac angioplasty and neurovascular balloons as substitutes for the Neuroballoon in 3 patients. The scepter balloon (Microvention), priced at $1800 compared to the standard $300 Neuroballoon (Integra), proved effective, but its pliability presented technical challenges. The substantial cost differential compared to a Neuroballoon ($300) raises economic considerations. The Cardiac TREK balloon (Abbott) was similarly effective, while also being easier to manage endoscopically and cheaper at $158. These experiences support the viability of non-neuroendoscopic specialized balloons as alternatives for ETV dilation of the floor of tuber cinereum.
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Affiliation(s)
- Michael J Feldman
- Division of Pediatric Neurosurgery, Children's of Alabama, The University of Alabama at Birmingham, Lowder 400, 1600 7th Avenue South, Birmingham, AL, 35233, USA.
| | - Hunter Boudreau
- Division of Pediatric Neurosurgery, Children's of Alabama, The University of Alabama at Birmingham, Lowder 400, 1600 7th Avenue South, Birmingham, AL, 35233, USA
| | - Le Tuan Anh
- Neurosurgery Department, Vietnam National Hospital of Pediatrics, Hanoi, Vietnam
| | - Georges Boubda Tsemo
- Division of Pediatric Neurosurgery, Children's of Alabama, The University of Alabama at Birmingham, Lowder 400, 1600 7th Avenue South, Birmingham, AL, 35233, USA
| | - Jeffrey P Blount
- Division of Pediatric Neurosurgery, Children's of Alabama, The University of Alabama at Birmingham, Lowder 400, 1600 7th Avenue South, Birmingham, AL, 35233, USA
| | - Curtis J Rozzelle
- Division of Pediatric Neurosurgery, Children's of Alabama, The University of Alabama at Birmingham, Lowder 400, 1600 7th Avenue South, Birmingham, AL, 35233, USA
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Yang TS, Chen HH, Bo-Wen L, Kim TW, Kim JG, Ahn JB, Lee MA, Lin J, Ho GF, Anh LT, Temraz S, Burge M, Chua C, Huang J, Park YS. Prospective, open-label, and observational study of cetuximab for metastatic colorectal carcinoma: The OPTIM1SE study. Asia Pac J Clin Oncol 2023; 19:672-680. [PMID: 36855017 DOI: 10.1111/ajco.13920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 12/13/2022] [Accepted: 12/26/2022] [Indexed: 03/02/2023]
Abstract
AIM The OPTIM1SE study observed long-term real-world outcomes of cetuximab-based infusional 5-fluorouracil (5-FU) regimens for first-line treatment of metastatic colorectal cancer (mCRC) across Asia-Pacific and Middle East regions, aiming to characterize their use, effectiveness, and safety in routine practice. METHODS OPTIM1SE was a prospective, open-label, observational study. Patients with untreated KRAS wild-type mCRC and distant metastases were treated per locally approved labels and monitored for 3 years via electronic medical records. The primary endpoint was the overall response rate (ORR). Secondary endpoints included safety, progression-free survival (PFS), and overall survival (OS). RESULTS From November 19, 2013, to June 30, 2016, 520 patients were enrolled in 51 sites. Patients were mostly male (61.2%), with a mean age of 58.5 (±12.0) years; 420 patients received leucovorin, 5-FU, and irinotecan-based regimens and 94 received leucovorin, 5-FU, and oxaliplatin. The most common primary tumor site was the rectum (38.8%), with liver metastases (65.0%). ORR was 45.4% (95% CI, 41.1%-49.7%), including 26 patients (5.0%) with a complete response. Median PFS was 9.9 months (95% CI, 8.2-11.0); median OS (mOS) was 30.8 months (95% CI, 27.9-33.6). Higher mOS was associated with tumors of left compared with right-sided origin (hazard ratio, 0.69 [95% CI, 0.49-0.99]); higher ORR was also associated with liver metastases compared with all other metastases (55.4% vs. 40.2%). Adverse events were consistent with the known safety profile of cetuximab. CONCLUSION Cetuximab-based 5-FU regimens were effective first-line treatments for mCRC in routine practice, particularly in patients with left-sided disease and liver metastases only.
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Affiliation(s)
- Tsai-Sheng Yang
- Division of Hematology/Oncology, Department of Internal Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
| | - Hong-Hwa Chen
- Department of Colorectal Surgery, Chang Gung Memorial Hospital, Kaohsiung City, Taiwan
| | - Lin Bo-Wen
- Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Tae Won Kim
- Department of Oncology, Asan Medical Center, University of Ulsan, Seoul, South Korea
| | - Jong Gwang Kim
- Kyungpook National University Medical Center, Daegu, South Korea
| | - Joong Bae Ahn
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Myung-Ah Lee
- The Catholic University of Korea, Seoul St Mary's Hospital, Seoul, South Korea
| | - Johnson Lin
- Division of Hematology and Oncology, Mackay Memorial Hospital, Taipei, Taiwan
| | - Gwo Fuang Ho
- Department of Oncology, Faculty of Medicine, University of Malaya Medical Centre, Kuala Lumpur, Malaysia
| | - Le Tuan Anh
- Department of Medical and Radiation Oncology, Cho Ray Hospital, Ho Chi Minh City, Vietnam
| | - Sally Temraz
- Division of Hematology and Oncology, American University of Beirut Medical Center, Beirut, Lebanon
| | - Matthew Burge
- Department of Medical Oncology, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia
| | - Clarinda Chua
- Division of Medical Oncology, National Cancer Centre, Singapore
| | - Jason Huang
- Merck Pte. Ltd., Singapore, an affiliate of Merck KGaA, Darmstadt, Germany
| | - Young Suk Park
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
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Duc NV, Trang VT, Tuan Anh HL, Vinh LB, Phong NV, Thuan TQ, Hieu NV, Dat NT, Nhan LV, Tuan DT, Tuan Anh L, Thao DT, Tai BH, Cuong NC, Lien LQ, Yang SY. Acetylcholinesterase inhibition studies of alkaloid components from Crinum asiaticum var. sinicum: in vitro assessments by molecular docking and molecular dynamics simulations. J Asian Nat Prod Res 2023:1-11. [PMID: 37889019 DOI: 10.1080/10286020.2023.2269541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 10/07/2023] [Indexed: 10/28/2023]
Abstract
Alkaloids are among the most important and best-known secondary metabolites as sources of new drugs from medicinal plants and marine organisms. A phytochemical investigation of the whole plant of Crinum asiaticum var. sinicum resulted in the isolation of seven alkaloids (1-7), including one new dimeric compound, bis-(-)-8-demethylmaritidine (1). Their structures were elucidated using NMR and HR-ESI-MS. The absolute configuration of new compound 1 was established by circular dichroism spectroscopy. All isolated compounds were evaluated for their inhibitory effects on acetylcholinesterase (AChE) activity in vitro. Among them, compound 1 exhibited the most potent AChE inhibition. Moreover, molecular docking and molecular dynamics simulations were carried out for the most active compound to investigate their binding interactions and dynamics behavior of the AChE protein-ligand complex. Therefore, compound 1 may be a potential candidate for effectively treating Alzheimer's disease.
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Affiliation(s)
- Ngo Viet Duc
- Center for Research and Technology Transfer (CRTT), Vietnam Academy of Science and Technology (VAST), Hanoi 10072, Vietnam
| | - Vu Thi Trang
- Center for Research and Technology Transfer (CRTT), Vietnam Academy of Science and Technology (VAST), Hanoi 10072, Vietnam
- Graduate University of Science and Technology, VAST, Hanoi 10072, Vietnam
| | - Hoang Le Tuan Anh
- Center for Research and Technology Transfer (CRTT), Vietnam Academy of Science and Technology (VAST), Hanoi 10072, Vietnam
- Graduate University of Science and Technology, VAST, Hanoi 10072, Vietnam
| | - Le Ba Vinh
- Institute of Marine Biochemistry, VAST, Hanoi 10072, Vietnam
- Faculty of Chemical Technology, Hanoi University of Industry, Hanoi 11900, Vietnam
| | | | - Tran Quang Thuan
- Center for Research and Technology Transfer (CRTT), Vietnam Academy of Science and Technology (VAST), Hanoi 10072, Vietnam
| | - Ngo Van Hieu
- Center for Research and Technology Transfer (CRTT), Vietnam Academy of Science and Technology (VAST), Hanoi 10072, Vietnam
| | - Nguyen Tien Dat
- Center for Research and Technology Transfer (CRTT), Vietnam Academy of Science and Technology (VAST), Hanoi 10072, Vietnam
| | - Le Van Nhan
- Center for Research and Technology Transfer (CRTT), Vietnam Academy of Science and Technology (VAST), Hanoi 10072, Vietnam
| | - Do Thanh Tuan
- ThaiBinh University of Medicine and Pharmacy, Thai Binh 06100, Vietnam
| | - Le Tuan Anh
- Mientrung Institute for Scientific Research, VNMN, VAST, Hanoi 10072, Vietnam
| | - Do Thi Thao
- Institute of Biotechnology, VAST, Hanoi 10072, Vietnam
| | - Bui Huu Tai
- Institute of Marine Biochemistry, VAST, Hanoi 10072, Vietnam
| | - Nguyen Cao Cuong
- Department of Medicine and Pharmacy, Yersin University, Da Lat 66100, Vietnam
| | - Le Quynh Lien
- Institute of Marine Biochemistry, VAST, Hanoi 10072, Vietnam
| | - Seo Young Yang
- Department of Biology Education, Teachers College and Institute for Phylogenomics and Evolution, Kyungpook National University, Daegu 41566, Republic of Korea
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Yen PH, Bang NA, Trang DT, Hai Yen DT, Dung DT, Huong PTT, Hoang NH, Tai BH, Anh LT, Kiem PV. Undescribed 2,9-deoxyflavonoids and flavonol-diamide [3+2] adduct from the leaves of Aglaia odorata Lour. Inhibit nitric oxide production. Phytochemistry 2023; 214:113792. [PMID: 37454887 DOI: 10.1016/j.phytochem.2023.113792] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 06/30/2023] [Accepted: 07/11/2023] [Indexed: 07/18/2023]
Abstract
Phytochemical study on the methanol extract of Aglaia odorata leaves resulted in the isolation of four previously undescribed compounds, including three 2,9-deoxyflavonoids and one flavonol-diamide [3 + 2] adduct, and 13 known compounds. The chemical structures of the four undescribed compounds were elucidated on the basis of their IR, HR-ESI-MS, 1D and 2D NMR, and ECD spectra. The results revealed an unprecedented 2,9-deoxyflavonoid framework, which was confirmed by TD-DFT, ECD, and GIAO 13C-NMR calculations using sorted training set methods. The 17 compounds were examined for their ability to inhibit NO production activity in cultured lipopolysaccharide-activated RAW264.7 cells with aglaodoratas A-C, odorine, and epi-odorine inhibiting NO production, with IC50 values in the range of 16.2-24.3 μM. The other investigated compounds had either weak or no activity.
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Affiliation(s)
- Pham Hai Yen
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam.
| | - Ngo Anh Bang
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam; Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Do Thi Trang
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Duong Thi Hai Yen
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Duong Thi Dung
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Phan Thi Thanh Huong
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Nguyen Huy Hoang
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Bui Huu Tai
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam; Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Le Tuan Anh
- Vietnam National Museum of Nature, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Phan Van Kiem
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam; Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam.
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Tai BH, Ninh BH, Yen PH, Dung DT, Hoang NH, Nhiem NX, Van Tuyen N, Anh LT, Van Kiem P. New nitric oxide production inhibitors from Syzygium bullockii. J Nat Med 2023; 77:964-971. [PMID: 37358723 DOI: 10.1007/s11418-023-01725-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 06/19/2023] [Indexed: 06/27/2023]
Abstract
Three undescribed triterpene glycosides syzybullosides A-C (1-3) along with fourteen known compounds were isolated from the leaves of Syzygium bullockii (Hance) Merr.& L.M. Perry, including six triterpene glycosides (1-6), four phenolics (7-9, 17), four megastigmanes (10-13), and three flavonoids (14-16). The structures of 1-17 were elucidated by extensive spectroscopic analysis, including IR, HR-ESI-MS, 1D and 2D NMR spectra. Compounds 1-10 and 12-17 inhibited nitric oxide (NO) production in lipopolysaccharide activated RAW264.7 cells with IC50 values ranging from 1.30 to 13.70 µM, lower than that of the positive control compound, L-NMMA (IC50 = 33.8 µM).
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Affiliation(s)
- Bui Huu Tai
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Bui Hai Ninh
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Hai Phong University of Medicine and Pharmacy, 72A Nguyen Binh Khiem, Ngo Quyen, Hai Phong, Vietnam
| | - Pham Hai Yen
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Duong Thi Dung
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Huy Hoang
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Xuan Nhiem
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Van Tuyen
- Hai Phong University of Medicine and Pharmacy, 72A Nguyen Binh Khiem, Ngo Quyen, Hai Phong, Vietnam
| | - Le Tuan Anh
- Mien Trung Institute for Scientific Research, Vietnam National Museum of Nature, VAST, Huynh Thuc Khang, 321, Hue, Thua Thien Hue, Vietnam
| | - Phan Van Kiem
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam.
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam.
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Van Kiem P, Hai Ninh B, Huu Tai B, Xuan Nhiem N, Hai Yen P, Huy Hoang N, Thi Trang D, Thi Dung D, Van Tuyen N, Tuan Anh L. Undescribed Phenolic Glycosides from Syzygium attopeuense and Their Inhibition of Nitric Oxide Production. Chem Biodivers 2023; 20:e202301037. [PMID: 37529975 DOI: 10.1002/cbdv.202301037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 08/01/2023] [Accepted: 08/02/2023] [Indexed: 08/03/2023]
Abstract
Four undescribed phenolic glycosides including three stilbene derivatives (1 and 3) and sodium salt of 3 (2), and a chalcone glycoside (4), together with thirteen known compounds (5-17) were isolated from the leaves of Syzygium attopeuense (Gagnep.) Merr. & L.M.Perry. Their chemical structures were elucidated to be (Z)-gaylussacin (1), 6''-O-galloylgaylussacin sodium salt (2), 6''-O-galloylgaylussacin (3), 4'-O-[β-D-glucopyranosyl-(1→6)-glucopyranosyl]oxy-2'-hydroxy-6'-methoxydihydrochalcone (4), gaylussacin (5), pinosilvin 3-O-β-D-glucopyranoside (6), myricetin-3-O-(2''-O-galloyl)-α-L-rhamnopyranoside (7), myricetin-3-O-(3''-O-galloyl)-α-L-rhamnopyranoside (8), myricetin-3-O-α-L-rhamnopyranoside (9), quercitrin (10), myricetin-3-O-β-D-glucopyranoside (11), myricetin-3-O-β-D-galactopyranoside (12), quercetin 3-O-α-L-arabinopyranoside (13), myricetin-3-O-2''-O-galloyl)-α-L-arabinopyranoside (14), (+)-gallocatechin (15), (-)-epigallocatechin (16), and 3,3',4'-trimethoxyellagic acid 4-O-β-D-glucopyranoside (17) by the analysis of HR-ESI-MS, 1D and 2D NMR spectra in comparison with the previously reported data. Compounds 1-3, 5, and 6 significant inhibition of NO production in LPS-activated RAW264.7 cells, with IC50 values ranging from 18.37±1.38 to 35.12±2.53 μM, compared to a positive control (dexamethasone) with an IC50 value of 15.37±1.42 μM.
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Affiliation(s)
- Phan Van Kiem
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, VAST), 18 Hoang Quoc Viet, Cau Giay, 10072, Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, 10072, Hanoi, Vietnam
| | - Bui Hai Ninh
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, 10072, Hanoi, Vietnam
- Hai Phong University of Medicine And Pharmacy, 72A Nguyen Binh Khiem, Ngo Quyen, 180000, Hai Phong, Vietnam
| | - Bui Huu Tai
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, VAST), 18 Hoang Quoc Viet, Cau Giay, 10072, Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, 10072, Hanoi, Vietnam
| | - Nguyen Xuan Nhiem
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, VAST), 18 Hoang Quoc Viet, Cau Giay, 10072, Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, 10072, Hanoi, Vietnam
| | - Pham Hai Yen
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, VAST), 18 Hoang Quoc Viet, Cau Giay, 10072, Hanoi, Vietnam
| | - Nguyen Huy Hoang
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, VAST), 18 Hoang Quoc Viet, Cau Giay, 10072, Hanoi, Vietnam
| | - Do Thi Trang
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, VAST), 18 Hoang Quoc Viet, Cau Giay, 10072, Hanoi, Vietnam
| | - Duong Thi Dung
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, VAST), 18 Hoang Quoc Viet, Cau Giay, 10072, Hanoi, Vietnam
| | - Nguyen Van Tuyen
- Institute of Chemistry, VAST, 18 Hoang Quoc Viet, Cau Giay, 10000, Hanoi, Vietnam
| | - Le Tuan Anh
- Vietnam National Museum of Nature, VAST, 18 Hoang Quoc Viet, Cau Giay, 10000, Hanoi, Vietnam
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Nam NH, Minh ND, Hai TX, Sinh CT, Loi CB, Anh LT. Pre-operative Factors Predicting Mortality in Six Months and Functional Recovery in Elderly Patients with Hip Fractures. Malays Orthop J 2023; 17:10-17. [PMID: 37064636 PMCID: PMC10103916 DOI: 10.5704/moj.2303.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 04/18/2022] [Indexed: 04/18/2023] Open
Abstract
Introduction This study aimed to determine on-admission and perioperative factors predicting six-month mortality and functional recovery in Vietnamese patients with hip fracture. Materials and methods Between April 2020 and July 2021, 118 patients participated in this prospective study. Patients' data were collected from medical records. Harris hip score (HHS) was used to evaluate the functional recovery six months after fractures. The obtained data were analysed using a univariate and multivariate model. Results The mean age of the participants was 79.5±9.4 years and 68.6% of the patients were female. The six-month mortality rate was 5.9% and independently associated with age (odds ratio (OR): 3.512, 95% confidence interval (CI) 1.538 - 8.019; P<0.001, patients aged >80 years vs those aged ≤80 years) and hypoproteinemia (OR: 2.859, 95% CI: 1.001 - 8.166, P=0.049). Among 111 survivors there were 66 (59.5%) of patients with a good functional recovery. Patients aged >80 years had a higher risk of poor functional outcome (OR: 3.167, 95% CI: 1.386 - 7.235, P: 0.006) compared to those aged ≤ 80 years. No significant correlations between other clinical (gender, body mass index, comorbidities, type of fractures or surgery, time until surgery) or laboratory parameters (anaemia, hyperglycemia, marked elevation of C reactive protein level, electrolyte abnormalities, elevated urea) and mortality or functional outcome were found. Conclusion Advanced age is the most important factor affecting both mortality and functional outcome while hypoproteinemia is associated with a higher risk of mortality in elderly patients with hip fractures.
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Affiliation(s)
- NH Nam
- Department of Orthopaedics, Nghe An Orthopaedic and Trauma Hospital, Nghe An, Vietnam
| | - ND Minh
- Department of Orthopaedics, National Hospital of Acupuncture, Ha Noi, Vietnam
| | - TX Hai
- Department of Pediatrics, Nghe An Obstetrics and Pediatrics Hospital, Nghe An, Vietnam
| | - CT Sinh
- Department of Orthopaedics Vinh Medical University, Nghe An, Vietnam
| | - CB Loi
- Department of Parasitology, National Institute of Malariology, Parasitology and Entomology
| | - LT Anh
- Department of Parasitology, Vietnam Military Medical University, Hanoi, Vietnam
- Corresponding Author: Le Tran Anh, Department of Parasitology, Vietnam Military Medical University, No. 160, Phung Hung Street, Phuc La Ward, Hadong District, Hanoi, Vietnam
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Hai Ninh B, Thi Dung D, Huu Tai B, Hai Yen P, Xuan Nhiem N, Thi Thu Hien T, Thi Trang D, Van Tuyen N, Tuan Anh L, Thi Hoai N, Van Kiem P. New Isopropyl Chromone and Flavanone Glucoside Compounds from the Leaves of Syzygium cerasiforme (Blume) Merr. & L.M.Perry and Their Inhibition of Nitric Oxide Production. Chem Biodivers 2023; 20:e202201048. [PMID: 36879412 DOI: 10.1002/cbdv.202201048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 02/16/2023] [Indexed: 03/08/2023]
Abstract
A new isopropyl chromone (1) and a new flavanone glucoside (2) together with eleven known compounds (3-13) were isolated from the leaves of Syzygium cerasiforme (Blume) Merr. & L.M.Perry. Their structures were elucidated as 5,7-dihydroxy-2-isopropyl-6,8-dimethyl-4H-chromen-4-one (1), 5,7-dihydroxyflavanone 7-O-β-D-(6''-O-galloylglucopyranoside) (2), strobopinin (3), demethoxymatteucinol (4), pinocembrin-7-O-β-D-glucopyranoside (5), (2S)-hydroxynaringenin-7-O-β-D-glucopyranoside (6), afzelin (7), quercetin (8), kaplanin (9), endoperoxide G3 (10), grasshopper (11), vomifoliol (12), litseagermacrane (13) by the analysis of HR-ESI-MS, NMR, and CD spectral data. Compounds 1, 2, 5, 6 and 10 inhibited NO production on LPS-activated RAW264.7 cells with IC50 values of 12.28±1.15, 8.52±1.62, 7.68±0.87, 9.67±0.57, and 6.69±0.34 μM, respectively, while the IC50 values of the other compounds ranging from 33.38±0.78 to 86.51±2.98 μM, compared to that of the positive control, NG -monomethyl-L-arginine acetate (L-NMMA) with an IC50 value of 32.50±1.00 μM.
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Affiliation(s)
- Bui Hai Ninh
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Viet Nam
- Hai Phong University of Medicine And Pharmacy., 72 A Nguyen Binh Khiem, Ngo Quyen, Hai Phong, 180000, Vietnam
| | - Duong Thi Dung
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam
| | - Bui Huu Tai
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Viet Nam
| | - Pham Hai Yen
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam
| | - Nguyen Xuan Nhiem
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Viet Nam
| | - Truong Thi Thu Hien
- Vietnam Military Medical University, 160 Phung Hung, Hadong, Hanoi, 10000, Vietnam
| | - Do Thi Trang
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam
| | - Nguyen Van Tuyen
- Institute of Chemistry, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10000, Vietnam
| | - Le Tuan Anh
- Vietnam Museum of Nature, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10000, Vietnam
| | - Nguyen Thi Hoai
- Hue University of Medicine and Pharmacy, Hue University, Ngo Quyen, Hue City, 530000, Vietnam
| | - Phan Van Kiem
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Viet Nam
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9
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Thu HT, Anh LT, Phuc LH, Vinh LK, Tung NT, Phuong PH. Green preparation of carbon quantum dots and its silver nanoparticles composite against carbapenem-resistant Acinetobacter baumannii. Appl Nanosci 2022. [DOI: 10.1007/s13204-022-02712-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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10
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Van Cong P, Anh HLT, Trung NQ, Quang Minh B, Viet Duc N, Van Dan N, Trang NM, Phong NV, Vinh LB, Anh LT, Lee KY. Isolation, structural elucidation and molecular docking studies against SARS-CoV-2 main protease of new stigmastane-type steroidal glucosides isolated from the whole plants of Vernonia gratiosa. Nat Prod Res 2022:1-9. [DOI: 10.1080/14786419.2022.2042534] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Pham Van Cong
- Center for Research and Technology Transfer, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, Hanoi, Vietnam
| | - Hoang Le Tuan Anh
- Center for Research and Technology Transfer, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, Hanoi, Vietnam
| | - Nguyen Quang Trung
- Center for Research and Technology Transfer, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Bui Quang Minh
- Center for Research and Technology Transfer, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Ngo Viet Duc
- Center for Research and Technology Transfer, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Van Dan
- Center for Research and Technology Transfer, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Minh Trang
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
| | - Nguyen Viet Phong
- Institute of Marine Biochemistry (IMBC), VAST, Hanoi, Vietnam
- College of Pharmacy, Kyungpook National University, Daegu, Republic of Korea
| | - Le Ba Vinh
- Institute of Marine Biochemistry (IMBC), VAST, Hanoi, Vietnam
- College of Pharmacy, Korea University, Sejong, Republic of Korea
| | - Le Tuan Anh
- Mientrung Institute for Scientific Research, VAST, Vietnam
| | - Ki Yong Lee
- College of Pharmacy, Korea University, Sejong, Republic of Korea
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11
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Dat TTH, Oanh PTT, Cuong LCV, Anh LT, Minh LTH, Ha H, Lam LT, Cuong PV, Anh HLT. Pharmacological Properties, Volatile Organic Compounds, and Genome Sequences of Bacterial Endophytes from the Mangrove Plant Rhizophora apiculata Blume. Antibiotics (Basel) 2021; 10:antibiotics10121491. [PMID: 34943703 PMCID: PMC8698355 DOI: 10.3390/antibiotics10121491] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 11/28/2021] [Accepted: 12/03/2021] [Indexed: 11/23/2022] Open
Abstract
Mangrove plant endophytic bacteria are prolific sources of bioactive secondary metabolites. In the present study, twenty-three endophytic bacteria were isolated from the fresh roots of the mangrove plant Rhizophora apiculata. The identification of isolates by 16S rRNA gene sequences revealed that the isolated endophytic bacteria belonged to nine genera, including Streptomyces, Bacillus, Pseudovibrio, Microbacterium, Brevibacterium, Microbulbifer, Micrococcus, Rossellomorea, and Paracoccus. The ethyl acetate extracts of the endophytic bacteria’s pharmacological properties were evaluated in vitro, including antimicrobial, antioxidant, α-amylase and α-glucosidase inhibitory, xanthine oxidase inhibitory, and cytotoxic activities. Gas chromatography–mass spectrometry (GC-MS) analyses of three high bioactive strains Bacillus sp. RAR_GA_16, Rossellomorea vietnamensis RAR_WA_32, and Bacillus sp. RAR_M1_44 identified major volatile organic compounds (VOCs) in their ethyl acetate extracts. Genome analyses identified biosynthesis gene clusters (BGCs) of secondary metabolites of the bacterial endophytes. The obtained results reveal that the endophytic bacteria from R. apiculata may be a potential source of pharmacological secondary metabolites, and further investigations of the high bioactive strains—such as fermentation and isolation of pure bioactive compounds, and heterologous expression of novel BGCs in appropriate expression hosts—may allow exploring and exploiting the promising bioactive compounds for future drug development.
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Affiliation(s)
- Ton That Huu Dat
- Mientrung Institute for Scientific Research, Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, 321 Huynh Thuc Khang, Hue City 49117, Vietnam; (P.T.T.O.); (L.C.V.C.); (L.T.A.)
- Correspondence: (T.T.H.D.); (P.V.C.); (H.L.T.A.); Tel.: +84-949-492-778 (T.T.H.D.); +84-913-219-187 (P.V.C.); +84-948-151-838 (H.L.T.A.)
| | - Phung Thi Thuy Oanh
- Mientrung Institute for Scientific Research, Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, 321 Huynh Thuc Khang, Hue City 49117, Vietnam; (P.T.T.O.); (L.C.V.C.); (L.T.A.)
| | - Le Canh Viet Cuong
- Mientrung Institute for Scientific Research, Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, 321 Huynh Thuc Khang, Hue City 49117, Vietnam; (P.T.T.O.); (L.C.V.C.); (L.T.A.)
| | - Le Tuan Anh
- Mientrung Institute for Scientific Research, Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, 321 Huynh Thuc Khang, Hue City 49117, Vietnam; (P.T.T.O.); (L.C.V.C.); (L.T.A.)
| | - Le Thi Hong Minh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 10072, Vietnam;
| | - Hoang Ha
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 10072, Vietnam; (H.H.); (L.T.L.)
| | - Le Tung Lam
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 10072, Vietnam; (H.H.); (L.T.L.)
| | - Pham Viet Cuong
- Mientrung Institute for Scientific Research, Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, 321 Huynh Thuc Khang, Hue City 49117, Vietnam; (P.T.T.O.); (L.C.V.C.); (L.T.A.)
- Correspondence: (T.T.H.D.); (P.V.C.); (H.L.T.A.); Tel.: +84-949-492-778 (T.T.H.D.); +84-913-219-187 (P.V.C.); +84-948-151-838 (H.L.T.A.)
| | - Hoang Le Tuan Anh
- Center for Research and Technology Transfer, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 10072, Vietnam
- Correspondence: (T.T.H.D.); (P.V.C.); (H.L.T.A.); Tel.: +84-949-492-778 (T.T.H.D.); +84-913-219-187 (P.V.C.); +84-948-151-838 (H.L.T.A.)
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12
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Anh LT, Cuong PV, Ha NH, Thao HT. Intercomparison of Geant4 low energy electromagnetic models in 90Y dosimetry. Appl Radiat Isot 2021; 178:109938. [PMID: 34560513 DOI: 10.1016/j.apradiso.2021.109938] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 09/01/2021] [Accepted: 09/06/2021] [Indexed: 11/26/2022]
Abstract
This work shows the comparison between Geant4 low energy electromagnetic physics lists G4EmLi-vermorePhysics, G4EmPenelopePhysics, G4EmLowEPPhysics, and G4EmDNAPhysics_option2 when simulating the energy deposition of low mono-energetic electrons and β- emitted from 90Y isotope. The simulation time and influence of production cut were considered. In the sense of balance between the accuracy and computer resource, G4EmPenelopePhysics can be proposed as the best physics model for our future Treatment Planning System (TPS) for treating liver cancer using 90Y microsphere radioembolization therapy.
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Affiliation(s)
- L T Anh
- Institute for Nuclear Science and Technology, Vietnam Atomic Energy Institute, Viet Nam
| | - P V Cuong
- Research and Development Center for Radiation Technology, Vietnam Atomic Energy Institute, Viet Nam.
| | - N H Ha
- Centre of Nuclear Physics, Institute of Physics, Vietnam Academy of Science and Technology, Viet Nam; M1 General Physics, Paris-Saclay University, 91405 Orsay Cedex, France
| | - H T Thao
- School of Mechanical Engineering, Kyungpook National University, South Korea
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13
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Viet Cuong LC, Nhi NPK, Ha TP, Anh LT, Dat TTH, Oanh PTT, Phuong NTM, Thu VTK, Duc HV, Anh HLT. A new steroidal saponin from the aerial parts of Solanum torvum. Nat Prod Res 2021; 36:4892-4897. [PMID: 33813958 DOI: 10.1080/14786419.2021.1908282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
A new steroidal saponin, torvoside R (1), was isolated along with torvoside Q (2) and macaoside (3) from dichloromethane soluble-portion of the aerial parts of Solanum torvum. Their chemical structures were elucidated using HRESIMS, 1 D- and 2 D-NMR as well as comparison with those reported in the literature. All isolated compounds (1 - 3) exhibited cytotoxicity against SK-LU-1, HepG2, MCF-7, and T24 cancer cell lines with IC50 values ranging from 14.18 to 89.31 µg/mL.
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Affiliation(s)
- Le Canh Viet Cuong
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST), Hue City, Vietnam
| | - Nguyen Phuc Khanh Nhi
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST), Hue City, Vietnam
| | - Tran Phuong Ha
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST), Hue City, Vietnam
| | - Le Tuan Anh
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST), Hue City, Vietnam
| | - Ton That Huu Dat
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST), Hue City, Vietnam
| | - Phung Thi Thuy Oanh
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST), Hue City, Vietnam
| | - Nguyen Thi Minh Phuong
- Faculty of Environment and Chemical Engineering, Duy Tan University (DTU), Da Nang, Vietnam
| | - Vo Thi Kim Thu
- Faculty of Food Science and Technology, Thu Dau Mot University, Thu Dau Mot, Vietnam
| | - Ho Viet Duc
- Hue University of Medicine and Pharmacy, Hue University, Hue City, Vietnam
| | - Hoang Le Tuan Anh
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST), Hue City, Vietnam.,Center for Research and Technology Transfer, VAST, Hanoi, Vietnam
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Viet Cuong LC, Anh LT, Huu Dat TT, Anh TTP, Lien LQ, Kim YH, Tuan Anh HL. Cytotoxic and anti-inflammatory activities of secondary metabolites from Ophiorrhiza baviensis growing in Thua Thien Hue, Vietnam. Nat Prod Res 2019; 35:4218-4224. [PMID: 31773982 DOI: 10.1080/14786419.2019.1693564] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A new ursane-type triterpene, 3β,23,24-trihydroxyurs-12-en-28-oic acid (1), together with eight known compounds (2-9) were isolated from the aerial parts of Ophiorrhiza baviensis. Among them, compounds 2-5 were found for the first time from the genus Ophiorrhiza, while compounds 6-9 were reported from O. baviensis for the first time. Their structures were elucidated by analysis of HR-ESI-MS and NMR (1H-NMR, 13C-NMR, HSQC, and HMBC) spectra, as well as comparison with those reported in the literature. Moreover, all isolated compounds were evaluated for their cytotoxic activities against MCF-7, Hela, KB, A549, and SK-LU-1 cancer cell lines and their effects on LPS-induced NO production in RAW264.7 cells. This is the first report of chemical constituents and biological activities of O. baviensis.
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Affiliation(s)
- Le Canh Viet Cuong
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST), Hue City, Vietnam
| | - Le Tuan Anh
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST), Hue City, Vietnam.,Graduate University of Science and Technology, VAST, Hanoi City, Vietnam
| | - Ton That Huu Dat
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST), Hue City, Vietnam
| | | | - Le Quynh Lien
- Department of International Co-Operation, VAST, Hanoi City, Vietnam
| | - Young Ho Kim
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
| | - Hoang Le Tuan Anh
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST), Hue City, Vietnam.,Graduate University of Science and Technology, VAST, Hanoi City, Vietnam
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15
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Cuong LCV, Lien LT, Nhi NPK, Ha TP, Tuan DT, Hoa KT, Oanh NTK, Anh LT, Anh HLT. Megastigmanes and flavones from Polyalthia thorelii
collected in Nam Dong, Thua Thien Hue. VJCH 2019. [DOI: 10.1002/vjch.201900017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Le Canh Viet Cuong
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST); Thua Thien Hue Viet Nam
| | - Le Thi Lien
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST); Thua Thien Hue Viet Nam
- Graduate University of Science and Technology, VAST; Viet Nam
| | - Nguyen Phuc Khanh Nhi
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST); Thua Thien Hue Viet Nam
| | - Tran Phuong Ha
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST); Thua Thien Hue Viet Nam
| | - Do Thanh Tuan
- Thai Binh University of Medicine and Pharmacy; Li Bon, Thai Binh Viet Nam
| | - Khong Thi Hoa
- Thai Binh University of Medicine and Pharmacy; Li Bon, Thai Binh Viet Nam
| | | | - Le Tuan Anh
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST); Thua Thien Hue Viet Nam
- Graduate University of Science and Technology, VAST; Viet Nam
| | - Hoang Le Tuan Anh
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology (VAST); Thua Thien Hue Viet Nam
- Graduate University of Science and Technology, VAST; Viet Nam
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16
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Anh LT, Huyen NTT, Tam PTT, Dat NT, Hieu TH, Van TTT, Hanh LTM, Soldatenkov AT, Wodajo AT. Synthesis of New [γ-(Aryl)pyridino]dibenzo-27,28-Diazacrownophanes Containing Two Pyridine Rings. MACROHETEROCYCLES 2019. [DOI: 10.6060/mhc190231a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Hieu TH, Komarova AI, Levov AN, Soldatenkov AT, Polyakova EI, Nguyen TV, Anh DTT, Nguyen DT, Van TTT, Anh LT. N-Acylation and N-Alkylation of Bis(benzo)aza-14-Crown-4 Ethers. Novel Hybrid Compound – Bis(furanyl)triazinethiolazacrown Ether. MACROHETEROCYCLES 2018. [DOI: 10.6060/mhc181002a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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18
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Anh LT, Phuong NTT, Hieu TH, Soldatenkov AT, Van BT, Van TTT, Nhung DT, Voskressensky LG, Tung TH, Khrustalev VN. Synthesis and Cytotoxicity of Dibenzo[(γ-aryl)pyridino]aza-17-crown-5 Ethers. MACROHETEROCYCLES 2018. [DOI: 10.6060/mhc170406a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Anh LT, Titov AA, Kobzev MS, Voskressensky LG, Varlamov AV, Dorovatovskii PV, Khrustalev VN. Unusual thermolysis of aza-cyclic allene under microwave conditions: crystal structure of (3 RS,3a SR,8 RS,8a RS)-methyl 5,6-dimeth-oxy-3a,10-dimethyl-1-phenyl-3,3a,8,8a-tetra-hydro-3,8-(epimino-methano)-cyclo-penta-[ a]indene-2-carboxyl-ate from synchrotron X-ray diffraction. Acta Crystallogr E Crystallogr Commun 2017; 73:1770-1773. [PMID: 29152370 PMCID: PMC5683510 DOI: 10.1107/s2056989017014864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 10/13/2017] [Indexed: 11/16/2022]
Abstract
The structure of methyl 5,6-dimethoxy-3a,10-dimethyl-1-phenyl-3,3a,8,8a-tetrahydro-3,8-(epiminomethano)cyclopenta[a]indene-2-carboxylate, the product of unusual thermolysis of azacyclic allene under microvawe conditions, was studied by synchrotron X-ray diffraction. The title compound, C25H27NO4 (I), the product of the unusual thermolysis of azacyclic allene methyl 10,11-dimethoxy-3,8-dimethyl-6-phenyl-3-azabenzo[d]cyclodeca-4,6,7-triene-5-carboxylate, represents a bicyclic heterosystem and crystallizes in the monoclinic space group P21/c with three crystallographically independent molecules in the unit cell. These independent molecules adopt very similar geometries and differ only in the conformations of the two methoxy substituents on the benzene ring. In two of the three independent molecules, both methoxy groups are almost coplanar with the benzene ring [the C—C—O—Me torsion angles are 10.8 (2), 12.3 (2), 9.1 (2) and 13.6 (3)°], whereas in the third molecule, one of the methoxy groups is practically coplanar to and the other methoxy group is roughly perpendicular to the benzene ring, the C—C—O—Me torsion angles being 14.1 (2) and 76.5 (2)°. The molecule of (I) comprises a fused tetracyclic system containing two five-membered rings (cyclopentenes) and two six-membered rings (piperidine and benzene). The five-membered rings have the usual envelope conformation, with the methyl-subsituted C atom as the flap in each molecule, and the six-membered piperidine ring has a chair conformation. The methyl substituent at the N atom occupies the sterically favourable equatorial position. The carboxylate group lies almost within the basal plane of the parent cyclopentene ring [making dihedral angle of 11.68 (8), 18.94 (9) and 15.16 (9)° in the three independent molecules], while the phenyl substituent is twisted by 48.26 (6), 42.04 (6) and 41.28 (6)° (for the three independent molecules) relative to this plane. In the crystal, molecules of (I) form stacks along the b-axis direction. The molecules are arranged at van der Waals distances.
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Affiliation(s)
- Le Tuan Anh
- Department of Pharmaceutical Chemistry, Faculty of Chemistry, VNU University of Science, 19 Le Thanh Tong, Hoan Kiem, Hanoi 100000, Vietnam
| | - Alexander A Titov
- Organic Chemistry Department, Peoples' Friendship University of Russia, (RUDN University), Miklukho-Maklay St., 6, Moscow 117198, Russian Federation
| | - Maxim S Kobzev
- Organic Chemistry Department, Peoples' Friendship University of Russia, (RUDN University), Miklukho-Maklay St., 6, Moscow 117198, Russian Federation
| | - Leonid G Voskressensky
- Organic Chemistry Department, Peoples' Friendship University of Russia, (RUDN University), Miklukho-Maklay St., 6, Moscow 117198, Russian Federation
| | - Alexey V Varlamov
- Organic Chemistry Department, Peoples' Friendship University of Russia, (RUDN University), Miklukho-Maklay St., 6, Moscow 117198, Russian Federation
| | - Pavel V Dorovatovskii
- National Research Centre "Kurchatov Institute", 1 Acad. Kurchatov Sq., Moscow 123182, Russian Federation
| | - Victor N Khrustalev
- Inorganic Chemistry Department, Peoples' Friendship University of Russia, (RUDN University), Miklukho-Maklay St., 6, Moscow 117198, Russian Federation
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Anh LT, Titov AA, Samavati R, Voskressensky LG, Varlamov AV, Khrustalev VN. A new approach to alkaloid-like systems: synthesis and crystal structure of 1-(2-acetyl-11-meth-oxy-5,6-di-hydro-[1,3]dioxolo[4,5- g]pyrrolo-[2,1- a]isoquinolin-1-yl)propan-2-one. Acta Crystallogr E Crystallogr Commun 2017; 73:1732-1734. [PMID: 29152361 PMCID: PMC5683501 DOI: 10.1107/s2056989017015110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 10/17/2017] [Indexed: 11/10/2022]
Abstract
The title compound, C19H19NO5, (I), is the product of a domino reaction between cotarnine chloride and acetyl-acetylene catalysed by copper(I) iodide. The mol-ecule of (I) comprises a fused tetra-cyclic system containing two terminal five-membered rings (pyrrole and 1,3-dioxole) and two central six-membered rings (di-hydro-pyridine and benzene). The five-membered 1,3-dioxole ring has an envelope conformation and the central six-membered di-hydro-pyridine ring adopts a twist-boat conformation. The acyl substituent is almost coplanar with the pyrrole ring, whereas the meth-oxy substituent is twisted by 27.93 (16)° relative to the benzene ring. The 2-oxopropan-1-yl substituent is roughly perpendicular to the pyrrole ring. In the crystal, mol-ecules are stacked along the a-axis direction; the stacks are linked by weak C-H⋯O hydrogen bonds into puckered layers lying parallel to (001).
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Affiliation(s)
- Le Tuan Anh
- Department of Pharmaceutical Chemistry, Faculty of Chemistry, VNU University of Science, 19 Le Thanh Tong, Hoan Kiem, Hanoi 100000, Vietnam
| | - Alexander A Titov
- Organic Chemistry Department, Peoples' Friendship University of Russia, (RUDN University), Miklukho-Maklay St., 6, Moscow 117198, Russian Federation
| | - Reza Samavati
- Organic Chemistry Department, Peoples' Friendship University of Russia, (RUDN University), Miklukho-Maklay St., 6, Moscow 117198, Russian Federation
| | - Leonid G Voskressensky
- Organic Chemistry Department, Peoples' Friendship University of Russia, (RUDN University), Miklukho-Maklay St., 6, Moscow 117198, Russian Federation
| | - Alexey V Varlamov
- Organic Chemistry Department, Peoples' Friendship University of Russia, (RUDN University), Miklukho-Maklay St., 6, Moscow 117198, Russian Federation
| | - Victor N Khrustalev
- Inorganic Chemistry Department, Peoples' Friendship University of Russia, (RUDN University), Miklukho-Maklay St., 6, Moscow 117198, Russian Federation
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Anh LT, Nhung DT, Tuyet LA, Van TTT, Hieu TH, Tuyen NV, Phuong NTT, Soldatenkov AT, Kotsuba VE, Anh DTT. Novel Podands Containing N-Arylthiosemicarbazide Moiety. MACROHETEROCYCLES 2017. [DOI: 10.6060/mhc170289l] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Hieu TH, Phuong NTT, Soldatenkov AT, Kotsuba VE, Polyakova EI, Tuyen NV, Van TTT, Anh DTT, Anh LT. Synthesis of tetrakisbenzo-31(34)-crown-7(8) ethers. MACROHETEROCYCLES 2017. [DOI: 10.6060/mhc170291i] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Hieu TH, Anh LT, Soldatenkov AT, Tuyen NV, Khrustalev VN. Crystal structure of (1 RS,21 SR,22 RS,24 SR)-28-oxo-24-propyl-8,11,14-trioxa-24,27-diazapentacyclo[19.5.1.1 22,26.0 2,7.0 15,20]octacosa-2,4,6,15(20),16,18-hexaene acetic acid monosolvate. Acta Crystallogr E Crystallogr Commun 2016; 72:829-32. [PMID: 27308052 PMCID: PMC4908554 DOI: 10.1107/s2056989016007556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 05/05/2016] [Indexed: 11/24/2022]
Abstract
The crystal structure of a product of the Petrenko–Kritchenko condensation of N-propylpiperidone with 1,5-bis(2-formylphenoxy)-3-oxapentane and ammonium acetate was studied by X-ray diffraction The title compound, C26H32N2O4(M)·C2H4O2, (I), is the product of the Petrenko–Kritchenko condensation of N-propylpiperidinone with 1,5-bis(2-formylphenoxy)-3-oxapentane and ammonium acetate. In M, the aza-14-crown-3-ether ring adopts a bowl conformation, with the configuration of the C—O—C—C —O—C—C—O—C polyether chain being t–g(−)–t–t–g(+)–t (t = trans, 180°; g = gauche, ±60°). The dihedral angle between the planes of the benzene rings fused to the aza-14-crown-4-ether moiety is 62.75 (5)°. The central piperidinone ring has a boat conformation, whereas the terminal piperidinone ring adopts a chair conformation. The boat conformation of the central piperidinone ring is supported by the bifurcated intramolecular N—H⋯O hydrogen bond. In the crystal, each solvent molecule is linked to molecule M via strong O—H⋯N hydrogen bonding, forming hydrogen-bonded pairs of molecules, which further interact through weak C—H⋯O hydrogen bonds, forming layers parallel to the ac plane.
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Tran TTV, Anh LT, Nguyen HH, Truong HH, Soldatenkov AT. Crystal structure of 26-(4-methyl-phen-yl)-8,11,14,17-tetra-oxa-28-aza-tetra-cyclo[22.3.1.0(2,7).0(18,23)]hexa-cosa-2,4,6,18(23),19,21,24(1),25,27-nona-ene. Acta Crystallogr E Crystallogr Commun 2016; 72:663-6. [PMID: 27308014 PMCID: PMC4908512 DOI: 10.1107/s2056989016005752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 04/06/2016] [Indexed: 11/10/2022]
Abstract
The title compound is the product of the Chichibabin domino reaction of 1,8-bis(2-acetylphenoxy)-3,6-dioxaoctane with 4-methylbenzaldehyde and ammonium acetate in acetic acid. It is of interest with respect to its potential anticancer activity. The compound has a bowl-like conformation comprising a fused tetracyclic system containing a 4-arylpyridine fragment, two benzene rings and an aza-17-crown-5 ether moiety. The title compound, C30H29NO4, is a tetracyclic system containing a 4-arylpyridine fragment, two benzene rings and an aza-17-crown-5 ether moiety, in a bowl-like arrangement. The pyridine ring is inclined to the 4-methylphenyl ring by 26.64 (6)°, and by 57.43 (6) and 56.81 (6)° to the benzene rings. The benzene rings are inclined to one another by 88.32 (6)°. In the crystal, molecules are linked by pairs of C—H⋯N hydrogen bonds, forming inversion dimers with an R22(14) ring motif. The dimers are linked via a number of C—H⋯π interactions, forming a three-dimensional architecture.
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Affiliation(s)
- T Thanh Van Tran
- Faculty of Chemistry, University of Science, Vietnam National University, 19 Le Thanh Tong, Hanoi, Vietnam
| | - Le Tuan Anh
- Faculty of Chemistry, University of Science, Vietnam National University, 19 Le Thanh Tong, Hanoi, Vietnam
| | - Hung Huy Nguyen
- Faculty of Chemistry, University of Science, Vietnam National University, 19 Le Thanh Tong, Hanoi, Vietnam
| | - Hong Hieu Truong
- Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam
| | - Anatoly T Soldatenkov
- Organic Chemistry Department, Peoples Friendship University of Russia, Miklukho-Maklaya St. 6, Moscow 117198, Russian Federation
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25
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Hieu TH, Anh LT, Soldatenkov AT, Gorchakova OS, Khrustalev VN. (1R*,21S*,22R*,24S*)-Methyl ethyl 2-[23-hy-droxy-22,24-diphenyl-8,11,14-trioxa-25-aza-tetra-cyclo-[19.3.1.0(2,7).0(15,20)]penta-cosa-2,4,6,15(20),16,18-hexaen-25-yl]but-2-enedioate. Acta Crystallogr Sect E Struct Rep Online 2013; 69:o1023-4. [PMID: 24046604 PMCID: PMC3772461 DOI: 10.1107/s1600536813014748] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Accepted: 05/28/2013] [Indexed: 11/16/2022]
Abstract
The title compound, C40H41NO8, is a product of the reduction of the cyclic carbonyl group of the γ-piperidone subunit of the aza-14-crown-4 ether with subsequent re-esterification of its dimethyl butenoate substituent into a monoethyl monomethyl group. The azacrown macrocycle exhibits a bowl conformation with a dihedral angle of 70.82 (5)° between the benzene rings fused to it. The piperidine ring adopts a chair conformation and the methyl ethyl ethylenedicarboxylate fragment has a cis conformation, with a dihedral angle of 66.51 (7)° between the two carboxylate groups. The ethyl group is disordered over two sites with occupancies of 0.70 (1):0.30 (1). In the crystal, molecules form inversion dimers, via pairs of O—H⋯O hydrogen bonds, that stack along the a axis.
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Affiliation(s)
- Truong Hong Hieu
- Department of Chemistry, Vietnam National University, 144 Xuan Thuy, Cau Giay, Hanoi, Vietnam
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26
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Voskressensky LG, Sokolova EA, Festa AA, Khrustalev VN, Van Tuyen N, Anh LT, Varlamov AV. Novel domino reaction of N-(cyanomethyl)-5,10-dihydro[1]benzosilano[3,2-c]pyridinium salts with salicylaldehydes. Chem Heterocycl Compd (N Y) 2013. [DOI: 10.1007/s10593-013-1272-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Tuyen NV, Anh LT, Festa AA, Voskressensky LG, Khrustalev VN. 1-Methyl-3-(2-oxo-2H-chromen-3-yl)-1H-imidazol-3-ium picrate. Acta Crystallogr Sect E Struct Rep Online 2013; 69:o839. [PMID: 23795027 PMCID: PMC3684925 DOI: 10.1107/s1600536813011690] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Accepted: 04/29/2013] [Indexed: 11/10/2022]
Abstract
The title salt, C13H11N2O2+·C6H2N3O7−, is the unexpected product of a domino reaction of 3-cyanomethyl-1-methylimidazolium chloride with salicylic aldehyde in the presence of picric acid. In the cation, the 1H-imidazole ring is twisted by 63.2 (1)° from the 2H-chromen plane. In the crystal, cations and anions are alternately stacked along the a axis through π–π stacking interactions between the almost parallel aromatic rings [centroid–centroid distances = 3.458 (2) and 3.678 (2) Å]. The stacks are further linked by C—H⋯O hydrogen bonds into a two-tier layer parallel to (001).
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Affiliation(s)
- Nguyen Van Tuyen
- Institute of Chemistry, Vietnam Academy of Science & Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
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28
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Hieu TH, Anh LT, Soldatenkov AT, Vasil'ev VG, Khrustalev VN. Ethyl 23-benzyl-8,11,14-trioxa-23,28,29-triaza-penta-cyclo-[19.7.1.0(2,7).0(15,20).0(22,27)]nona-cosa-2,4,6,15(20),16,18,21,26-octa-ene-26-carboxyl-ate. Acta Crystallogr Sect E Struct Rep Online 2013; 69:o565-6. [PMID: 23634102 PMCID: PMC3629615 DOI: 10.1107/s1600536813007241] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Accepted: 03/16/2013] [Indexed: 11/10/2022]
Abstract
The title compound, C33H35N3O5, is the product of the multicomponent condensation of 1-benzyl-4-eth-oxy-carbonyl-piperidin-3-one with 1,5-bis-(2-formyl-phen-oxy)-3-oxapentane and ammonium acetate. The mol-ecule comprises a penta-cyclic system containing the aza-14-crown-4-ether macrocycle, tetra-hydro-pyrimidine, tetra-hydro-pyridine and two benzene rings. The aza-14-crown-4-ether ring adopts a bowl conformation with a dihedral angle of 62.37 (5)° between the benzene rings. The tetra-hydro-pyrimidine ring has an envelope conformation with the chiral C atom as the flap, whereas the tetra-hydro-pyridine ring adopts a distorted chair conformation. Two amino groups are involved in intra-molecular N-H⋯O hydrogen bonds. In the crystal, weak C-H⋯O hydrogen bonds link the mol-ecules into layers parallel to the ab plane.
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Affiliation(s)
- Truong Hong Hieu
- Department of Chemistry, Vietnam National University, 144 Xuan Thuy, Cau Giay, Hanoi, Vietnam
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Hieu THH, Anh LT, Soldatenkov AT, Vasil’ev VG, Kotsuba VE, Khrustalev VN. Unexpected Formation of [(Δ3-Piperideino)pyrimidino]-14-crown-4 Ethers in a Petrenko-Kritschenko Type Condensation. MACROHETEROCYCLES 2013. [DOI: 10.6060/mhc131264h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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30
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Hieu TH, Anh LT, Soldatenkov AT, Kurilkin VV, Khrustalev VN. meso-(1S*,21R*)-25-Methyl-8,11,14-trioxa-22,24,25-triaza-tetra-cyclo-[19.3.1.0(2,7).0(15,20)]penta-cosa-2,4,6,15(20),16,18-hexa-ene-23-thione chloro-form monosolvate. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o2848-9. [PMID: 23125652 PMCID: PMC3470208 DOI: 10.1107/s1600536812037051] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Accepted: 08/27/2012] [Indexed: 11/10/2022]
Abstract
The title compound crystallizes as a chloro-form solvate, C(20)H(23)N(3)O(3)S·CHCl(3), with two crystallographically independent units. The independent units have distinctly different inter-action patterns between the aza-crown macrocycle and the chloro-form solvent mol-ecule. In one of them, the chloro-form mol-ecule forms C-H⋯N and Cl⋯H-C hydrogen bonds with the aza-crown macrocycle (as a proton donor and an acceptor, respectively), whereas in the other, one of the chloro-form mol-ecules is bound to the aza-crown macrocycle by an attractive Cl⋯O [3.080 (3) Å] inter-action. The aza-crown macrocycles of different units are structurally similar; the aza-14-crown-3-ether ring adopts a bowl conformation with dihedral angles between the planes of the fused benzene rings of 60.7 (1) and 68.0 (1)°. The triazinane-thione ring in both cases has a sofa conformation. The crystal packing is characterized by N-H⋯S, N-H⋯O, C-H⋯Cl and C-H⋯S hydrogen bonds.
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Affiliation(s)
- Truong Hong Hieu
- Department of Chemistry, Vietnam National University, 144 Xuan Thuy, Cau Giay, Hanoi, Vietnam
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Hieu TH, Anh LT, Soldatenkov AT, Kolyadina NM, Khrustalev VN. Dimethyl 2-[24-acetyl-28-oxo-8,11,14-trioxa-24,27-diaza-penta-cyclo-[19.5.1.1(22,26).0(2,7).0(15,20)]octa-cosa-2,4,6,15(20),16,18-hexaen-27-yl]but-2-enedioate. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o2431-2. [PMID: 22904880 PMCID: PMC3414347 DOI: 10.1107/s1600536812030644] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Accepted: 07/04/2012] [Indexed: 11/30/2022]
Abstract
The title compound, C31H34N2O9, is a product of the Michael addition of the cyclic secondary amine subunit of the (bispidino)aza-14-crown-4 ether to dimethyl acetylenedicarboxylate. The molecule comprises a tricyclic system containing the aza-14-crown-3 ether macrocycle and two six-membered piperidinone rings. The aza-14-crown-3-ether ring adopts a bowl conformation with a dihedral angle between the planes of the fused benzene rings of 51.14 (5)°. The central piperidone ring has a boat conformation, whereas the terminal piperidone ring adopts a chair conformation. The dimethyl ethylenedicarboxylate fragment has a cis configuration with a dihedral angle of 56.56 (7)° between the two carboxylate groups. The crystal packing is stabilized by weak C—H⋯O hydrogen bonds.
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Anh LT, Hieu TH, Soldatenkov AT, Kolyadina NM, Khrustalev VN. 24-Acetyl-8,11,14-trioxa-24,27-diaza-penta-cyclo-[19.5.1.1(22,26).0(2,7).0(15,20)]octa-cosa-2,4,6,15(20),16,18-hexaen-28-one. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o2165-6. [PMID: 22798837 PMCID: PMC3393972 DOI: 10.1107/s1600536812027274] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2012] [Accepted: 06/15/2012] [Indexed: 11/24/2022]
Abstract
The title compound, C25H28N2O5, is a product of the Petrenko–Kritchenko condensation of N-acetylpiperidone with 1,5-bis(2-formylphenoxy)-3-oxapentane and ammonium acetate. The molecule comprises a fused pentacyclic system containing an aza-14-crown-3-ether macrocycle, two piperidone and two benzene rings. The aza-14-crown-3-ether ring adopts a bowl conformation. The dihedral angle between the benzene rings fused to the aza-14-crown-4-ether unit is 70.18 (4)°. The central piperidone ring has a boat conformation, whereas the terminal piperidone ring adopts a chair conformation. The conformation of the central piperidone ring is determined by two intramolecular N—H⋯O hydrogen bonds. In the crystal, molecules are linked by weak C—H⋯O interactions into chains along [010].
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33
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Anh LT, Hieu TH, Soldatenkov AT, Kolyadina NM, Khrustalev VN. Dimethyl 2-[22,24-dimethyl-23-oxo-8,11,14-trioxa-25-aza-tetra-cyclo-[19.3.1.0(2,7).0(15,20)]penta-cosa-2,4,6,15(20),16,18-hexaen-25-yl]but-2-enedioate. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o1588-9. [PMID: 22719399 PMCID: PMC3379201 DOI: 10.1107/s1600536812018867] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Accepted: 04/26/2012] [Indexed: 11/10/2022]
Abstract
The title compound, C29H33NO8, is a product of the Michael addition of the cyclic secondary amine subunit of the aza-14-crown-4 ether to dimethyl acetylenedicarboxylate. The piperidinone ring exhibits a distorted chair conformation, and the dimethyl ethylenedicarboxylate fragment has a cis configuration with a dihedral angle of 78.96 (5)° between the two carboxylate groups. The crystal packing is stabilized by weak C—H⋯O hydrogen bonds.
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Anh LT, Hieu TH, Soldatenkov AT, Soldatova SA, Khrustalev VN. Dimethyl 2-[23-oxo-22,24-diphenyl-8,11,14-trioxa-25-aza-tetra-cyclo-[19.3.1.0(2,7).0(15,20)]penta-cosa-2,4,6,15(20),16,18-hexaen-25-yl]but-2-enedioate. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o1386-7. [PMID: 22590276 PMCID: PMC3344514 DOI: 10.1107/s1600536812015206] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2012] [Accepted: 04/06/2012] [Indexed: 11/10/2022]
Abstract
The title compound, C(39)H(37)NO(8), is a product of the Michael addition of the cyclic secondary amine subunit of aza-14-crown-4 ether to dimethyl acetyl-enedicarboxyl-ate. The piperidinone ring exhibits a distorted chair conformation and the dimethyl acetyl-enedicarboxyl-ate fragment has a cis configuration with a dihedral angle of 56.61 (5)° between the two carboxyl-ate groups. The crystal packing is stabilized by the weak C-H⋯O hydrogen bonds.
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35
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Anh LT, Hieu TH, Soldatenkov AT, Soldatova SA, Khrustalev VN. (2E,25E)-11,14,17,33,36,39,42-Hepta-oxa-penta-cyclo-[41.4.0.0.0.0]hepta-tetra-conta-1(43),2,5(10),6,8,18,20,22,25,27,29,31,44,46-tetra-decaene-4,24-dione. Acta Crystallogr Sect E Struct Rep Online 2011; 67:o1128-9. [PMID: 21754440 PMCID: PMC3089172 DOI: 10.1107/s1600536811013201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2011] [Accepted: 04/08/2011] [Indexed: 12/04/2022]
Abstract
The title compound, C40H40O9, is a product of the double crotonic condensation of bis(2-acetylphenoxy)-3-oxapentane with bis(2-formylphenoxy)-3,6-dioxaoctane. The title macromolecule includes the 31-crown-7-ether skeletal unit and adopts a saddle-like conformation. The two ethylene fragments have E configurations. The volume of the internal cavity of the macrocycle is approximately 125 Å3. In the crystal, the molecules are arranged at van der Waals distances.
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36
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Anh LT, Hieu TH, Soldatenkov AT, Soldatova SA, Khrustalev VN. 9-[(2-Hy-droxy-benzyl-idene)amino]-11-(2-hy-droxy-phen-yl)-10,13-diphenyl-8-oxa-12-azoniatricyclo-[7.3.1.0]trideca-2(7),3,5-triene acetate ethanol disolvate. Acta Crystallogr Sect E Struct Rep Online 2011; 67:o560-o561. [PMID: 21522325 PMCID: PMC3052148 DOI: 10.1107/s160053681100376x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2011] [Accepted: 01/29/2011] [Indexed: 05/30/2023]
Abstract
The title compound, C(36)H(31)N(2)O(3) (+),C(2)H(3)O(2) (-)·2C(2)H(5)OH, the product of a domino condensation of dibenzyl ketone with salicylic aldehyde and ammonium acetate, crystallized as the ethanol disolvate. The cation of the salt comprises a fused tricyclic system containing three six-membered rings (piperidine, dihydro-2H-pyran and benzene). The piperidine ring has the usual chair conformation, while the dihydro-pyran ring adopts a slightly distorted sofa conformation. In the crystal, there are six (one intra- and five inter-molecular) independent hydrogen-bonding inter-actions: the inter-molecular hydrogen bonds link the cations and anions and ethanol solvent mol-ecules into ribbons along [001]. The ribbons are stacked along the a axis.
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Affiliation(s)
- Le Tuan Anh
- Department of Chemistry, Vietnam National University, 144 Xuan Thuy, Cau Giay, Hanoi, Vietnam
| | - Truong Hong Hieu
- Organic Chemistry Department, Russian Peoples Friendship University, Miklukho-Maklaya St 6, Moscow 117198, Russian Federation
| | - Anatoly T. Soldatenkov
- Organic Chemistry Department, Russian Peoples Friendship University, Miklukho-Maklaya St 6, Moscow 117198, Russian Federation
| | - Svetlana A. Soldatova
- Organic Chemistry Department, Russian Peoples Friendship University, Miklukho-Maklaya St 6, Moscow 117198, Russian Federation
| | - Victor N. Khrustalev
- X-Ray Structural Centre, A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov St, B-334, Moscow 119991, Russian Federation
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Anh LT, Soldatenkov AT, Hong Hieu T, Soldatova SA, Levov AN, Polyanskiy KB. Synthesis of derivatives of pyrido-[1,2-c][1,3,2]oxazaborinine and pyrido-[2,1,6-f,g][1,3,7,2]dioxazaphosphacyclo-decane. Chem Heterocycl Compd (N Y) 2009. [DOI: 10.1007/s10593-009-0215-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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38
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Anh LT, Soldatenkov AT, Mamyrbekova ZA, Soldatova SA, Polyanskiy KB, Tung TT, Khrustalev VN. Synthesis and molecular structure of substituted 2-hydroxyperhydro-[1,3,2]dioxaborinino[5,4-c]pyridines, perhydro[1,3]dioxano[5,4-c]pyridine, and their precursor-4-hydroxy-3-(α-hydroxybenzyl)-1-methyl-4-phenylpiperidine. Chem Heterocycl Compd (N Y) 2009. [DOI: 10.1007/s10593-009-0185-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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39
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Volkov SV, Kutyakov SV, Levov AN, Polyakova EI, Anh LT, Soldatova SA, Terentiev PB, Soldatenkov AT. Reaction of 3-benzoyl-1-methyl-4-phenyl-γ-piperidol with arylamines and arylhydrazines. Synthesis of 3-arylamino-1-oxo-1-phenylpropanes and 1,3 diarylpyrazoles and their fragmentation under electron impact. Chem Heterocycl Compd (N Y) 2007. [DOI: 10.1007/s10593-007-0064-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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40
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Levov AN, Strokina VM, Anh LT, Komarova AI, Soldatenkov AT, Khrustalev VN. Synthesis of dibenzopiperidinoaza-14-crown-4 ethers and their one-step conversion into dibenzo-16-crown-3. Mendeleev Communications 2006. [DOI: 10.1070/mc2006v016n01abeh002201] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Anh LT, Volkov SV, Polyanski KB, Soldatenkov AT. Unexpected oxidation of azafluoren-9-ones under Baeyer-Villiger conditions. Chem Heterocycl Compd (N Y) 2004. [DOI: 10.1007/s10593-005-0023-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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42
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Anh LT, Polyanskii KB, Andresyuk AN, Soldatenkov AT, Mamyrbekova ZA, Kuleshova LN, Khrustalev VN. Synthesis and molecular structure of 2,4,8a-triaryl-6-methylperhydro[1,3,2]dioxaborinino[5,4-c]pyridines. Russ Chem Bull 2004. [DOI: 10.1023/b:rucb.0000037853.67560.1c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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