1
|
Lin CT, Yang YH, Cheng JJ, Don MJ. Total Syntheses, Absolute Configurations, and Cytotoxicity Evaluation of Ugonstilbenes A, B, and C from the Rhizomes of Helminthostachys zeylanica. JOURNAL OF NATURAL PRODUCTS 2023; 86:307-316. [PMID: 36691388 DOI: 10.1021/acs.jnatprod.2c00919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
This study describes the first and efficient syntheses of the naturally occurring ugonstilbenes A, B, and C. The stilbene skeleton was prepared using the Horner-Wadsworth-Emmons reaction. On the basis of their specific rotations, the absolute configurations of ugonstilbenes A and C were both determined to be R, while the absolute configuration of ugonstilbene B was determined as 4aS,9aR. The synthesized compounds showed cytotoxic activities against selected human cancer cell lines.
Collapse
Affiliation(s)
- Cheng-Tin Lin
- National Research Institute of Chinese Medicine, No. 155-1, Sec. 2, Linong Street, Beitou District, Taipei 11221, Taiwan, R.O.C
| | - Yao-Hung Yang
- Department of Chemistry, Chinese Culture University, No. 55, Hwa-Kang Road, Yang-Ming-Shan, Taipei 11114, Taiwan,R.O.C
| | - Jing-Jy Cheng
- National Research Institute of Chinese Medicine, No. 155-1, Sec. 2, Linong Street, Beitou District, Taipei 11221, Taiwan, R.O.C
| | - Ming-Jaw Don
- National Research Institute of Chinese Medicine, No. 155-1, Sec. 2, Linong Street, Beitou District, Taipei 11221, Taiwan, R.O.C
- Department of Chemistry, Chinese Culture University, No. 55, Hwa-Kang Road, Yang-Ming-Shan, Taipei 11114, Taiwan,R.O.C
| |
Collapse
|
2
|
Peng Y, Li Z, Hu J, Wu T. Palladium-Catalyzed Denitrative Mizoroki–Heck Reactions of Aryl or Alkyl Olefins with Nitrobenzenes. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2022. [DOI: 10.1134/s1070428022120168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
|
3
|
AIMP2-DX2 provides therapeutic interface to control KRAS-driven tumorigenesis. Nat Commun 2022; 13:2572. [PMID: 35546148 PMCID: PMC9095880 DOI: 10.1038/s41467-022-30149-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 04/14/2022] [Indexed: 12/11/2022] Open
Abstract
Recent development of the chemical inhibitors specific to oncogenic KRAS (Kirsten Rat Sarcoma 2 Viral Oncogene Homolog) mutants revives much interest to control KRAS-driven cancers. Here, we report that AIMP2-DX2, a variant of the tumor suppressor AIMP2 (aminoacyl-tRNA synthetase-interacting multi-functional protein 2), acts as a cancer-specific regulator of KRAS stability, augmenting KRAS-driven tumorigenesis. AIMP2-DX2 specifically binds to the hypervariable region and G-domain of KRAS in the cytosol prior to farnesylation. Then, AIMP2-DX2 competitively blocks the access of Smurf2 (SMAD Ubiquitination Regulatory Factor 2) to KRAS, thus preventing ubiquitin-mediated degradation. Moreover, AIMP2-DX2 levels are positively correlated with KRAS levels in colon and lung cancer cell lines and tissues. We also identified a small molecule that specifically bound to the KRAS-binding region of AIMP2-DX2 and inhibited the interaction between these two factors. Treatment with this compound reduces the cellular levels of KRAS, leading to the suppression of KRAS-dependent cancer cell growth in vitro and in vivo. These results suggest the interface of AIMP2-DX2 and KRAS as a route to control KRAS-driven cancers. Direct targeting of oncogenic KRAS activity is a challenge. Here the authors report that a splice variant of AIMP2, AIMP2-DX2, enhances KRAS stability by blocking ubiquitin-mediated degradation of KRAS via the E3 ligase, Smurf2, and identify a chemical that can hinder AIMP2-DX2 from interacting with KRAS.
Collapse
|
4
|
Lu Q, Harmalkar DS, Quan G, Kwon H, Cho J, Choi Y, Lee D, Lee K. Total Synthesis of the Neuroprotective Agent Cudraisoflavone J. JOURNAL OF NATURAL PRODUCTS 2021; 84:1359-1365. [PMID: 33826847 DOI: 10.1021/acs.jnatprod.1c00121] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Cudraisoflavone J (1), isolated from Cudrania tricuspidata, is a potent neuroprotective compound with a chiral center. Herein, we report the first total synthesis of racemic cudraisoflavone J (1) using a Claisen rearrangement and a Suzuki coupling reaction as the key steps. Racemic secondary alcohol was kinetically resolved to give (+)- and (-)-cudraisoflavone J with up to 97 and 88% enantiomeric excess, respectively. The modified Mosher's method was used to elucidate the absolute configuration of naturally occurring cudraisoflavone J.
Collapse
Affiliation(s)
- Qili Lu
- College of Pharmacy, Dongguk University-Seoul, Goyang 10326, Republic of Korea
| | - Dipesh S Harmalkar
- College of Pharmacy, Dongguk University-Seoul, Goyang 10326, Republic of Korea
- Department of Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Guofeng Quan
- College of Pharmacy, Dongguk University-Seoul, Goyang 10326, Republic of Korea
| | - Haeun Kwon
- Department of Plant Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Jungsook Cho
- College of Pharmacy, Dongguk University-Seoul, Goyang 10326, Republic of Korea
| | - Yongseok Choi
- Department of Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Dongho Lee
- Department of Plant Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Kyeong Lee
- College of Pharmacy, Dongguk University-Seoul, Goyang 10326, Republic of Korea
| |
Collapse
|
5
|
Sivaraman A, Kim JS, Harmalkar DS, Min KH, Park JW, Choi Y, Kim K, Lee K. Synthesis and Cytotoxicity Studies of Bioactive Benzofurans from Lavandula agustifolia and Modified Synthesis of Ailanthoidol, Homoegonol, and Egonol. JOURNAL OF NATURAL PRODUCTS 2020; 83:3354-3362. [PMID: 33073572 DOI: 10.1021/acs.jnatprod.0c00697] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
2-Aryl/alkylbenzofurans, which constitute an important subclass of naturally occurring lignans and neolignans, have attracted extensive synthetic efforts due to their useful biological activities and significant pharmacological potential. Herein, we report a general and efficient approach to divergent 2-arylbenzofurans through a one-pot synthesis of versatile 2-bromobenzofurans as key intermediates. Using this approach, the first total synthesis of a series of trisubstituted and tetrasubstituted benzofurans bearing the hydroxyethyl unit, including the natural compounds isolated from Lavandula agustifolia (1-3) and their non-natural derivatives (4-8), was accomplished. We also report a modified synthesis of ailanthoidol, homoegonol, and egonol that enables the divergent synthesis of their derivatives for future exploration. Among these, the representative phenolic natural compound 2 and its derivatives 7 and 5 induced apoptotic cell death related poly(ADP-ribose) polymerase (PARP) cleavage in MCF74, A549, PC3, HepG2, and Hep3B cancer cell lines. Additionally, the tumor suppressor protein p53 was also induced in p53 wild type cancer cells.
Collapse
Affiliation(s)
- Aneesh Sivaraman
- College of Pharmacy, Dongguk University-Seoul, Goyang 10326, Republic of Korea
| | - Jin Sook Kim
- Division of Clinical Research, Research Institute, National Cancer Center, Goyang 10408, Republic of Korea
| | - Dipesh S Harmalkar
- College of Pharmacy, Dongguk University-Seoul, Goyang 10326, Republic of Korea
- College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Kyoung Ho Min
- College of Pharmacy, Dongguk University-Seoul, Goyang 10326, Republic of Korea
| | - Joong-Won Park
- Division of Clinical Research, Research Institute, National Cancer Center, Goyang 10408, Republic of Korea
| | - Yongseok Choi
- College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Kyungtae Kim
- Division of Cancer Research, Research institute, National Cancer Center, Goyang 10408, Republic of Korea
| | - Kyeong Lee
- College of Pharmacy, Dongguk University-Seoul, Goyang 10326, Republic of Korea
| |
Collapse
|
6
|
Song D, Cao X, Huang W, Ke S. Design, Synthesis and Biological Evaluation of Stilbene Derivatives Containing a 1,3‐Benzodioxole Moiety. ChemistrySelect 2020. [DOI: 10.1002/slct.202003860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Di Song
- College of Science Huazhong Agricultural University Wuhan 430070 China
| | - Xiufang Cao
- College of Science Huazhong Agricultural University Wuhan 430070 China
| | - Wenbo Huang
- National Biopesticide Engineering Research Center Hubei Biopesticide Engineering Research Center Hubei Academy of Agricultural Science Wuhan 430064 China
| | - Shaoyong Ke
- National Biopesticide Engineering Research Center Hubei Biopesticide Engineering Research Center Hubei Academy of Agricultural Science Wuhan 430064 China
| |
Collapse
|
7
|
Shi Y, Zhao X, Wang C, Wang Y, Zhang S, Li P, Feng X, Jin B, Yuan M, Cui S, Sun Y, Zhang B, Sun S, Jin X, Wang H, Zhao G. Ultrafast Nonadiabatic Photoisomerization Dynamics Mechanism for the UV Photoprotection of Stilbenoids in Grape Skin. Chem Asian J 2020; 15:1478-1483. [PMID: 32196972 DOI: 10.1002/asia.202000219] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/18/2020] [Indexed: 12/12/2022]
Abstract
Natural UV photoprotection plays a vital role in physiological protection. It has been reported that UVC radiation can make resveratrol (RSV) and piceatannol (PIC) accumulate in grape skin. In this work, we demonstrated that RSV and PIC could significantly absorb UVA and UVB, and confirmed their satisfactory photostability. Furthermore, we clarified the UV photoprotection mechanism of typical stilbenoids of RSV and PIC for the first time by using combined femtosecond transient absorption (FTA) spectroscopy and time-dependent density functional theory (TD-DFT) calculations. RSV and PIC can be photoexcited to the excited state after UVA and UVB absorption. Subsequently, the photoisomerized RSV and PIC quickly relax to the ground state via nonadiabatic transition from the S1 state at a conical intersection (CI) position between potential energy surfaces (PESs) of S1 and S0 states. This ultrafast trans-cis photoisomerization will take place within a few tens of picoseconds. As a result, the UV energy absorbed by RSV and PIC could be dissipated by an ultrafast nonadiabatic photoisomerization process.
Collapse
Affiliation(s)
- Yanan Shi
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences National Demonstration Center for Experimental Chemistry & Chemical engineering Education National Virtual Simulation Experimental Teaching Center for Chemistry & Chemical Engineering Education Department of Chemistry, School of Science Tianjin University, Tianjin, 300354, P. R. China
| | - Xiaoying Zhao
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences National Demonstration Center for Experimental Chemistry & Chemical engineering Education National Virtual Simulation Experimental Teaching Center for Chemistry & Chemical Engineering Education Department of Chemistry, School of Science Tianjin University, Tianjin, 300354, P. R. China
| | - Chao Wang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences National Demonstration Center for Experimental Chemistry & Chemical engineering Education National Virtual Simulation Experimental Teaching Center for Chemistry & Chemical Engineering Education Department of Chemistry, School of Science Tianjin University, Tianjin, 300354, P. R. China
| | - Ye Wang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Song Zhang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Peng Li
- Institute of Molecular Sciences and Engineering, Shandong University, Qingdao, 266235, P. R. China
| | - Xia Feng
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences National Demonstration Center for Experimental Chemistry & Chemical engineering Education National Virtual Simulation Experimental Teaching Center for Chemistry & Chemical Engineering Education Department of Chemistry, School of Science Tianjin University, Tianjin, 300354, P. R. China
| | - Bing Jin
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Minghu Yuan
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Shen Cui
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences National Demonstration Center for Experimental Chemistry & Chemical engineering Education National Virtual Simulation Experimental Teaching Center for Chemistry & Chemical Engineering Education Department of Chemistry, School of Science Tianjin University, Tianjin, 300354, P. R. China
| | - Yan Sun
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences National Demonstration Center for Experimental Chemistry & Chemical engineering Education National Virtual Simulation Experimental Teaching Center for Chemistry & Chemical Engineering Education Department of Chemistry, School of Science Tianjin University, Tianjin, 300354, P. R. China
| | - Bing Zhang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Shuqing Sun
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences National Demonstration Center for Experimental Chemistry & Chemical engineering Education National Virtual Simulation Experimental Teaching Center for Chemistry & Chemical Engineering Education Department of Chemistry, School of Science Tianjin University, Tianjin, 300354, P. R. China
| | - Xiaoning Jin
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences National Demonstration Center for Experimental Chemistry & Chemical engineering Education National Virtual Simulation Experimental Teaching Center for Chemistry & Chemical Engineering Education Department of Chemistry, School of Science Tianjin University, Tianjin, 300354, P. R. China
| | - Haiyuan Wang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences National Demonstration Center for Experimental Chemistry & Chemical engineering Education National Virtual Simulation Experimental Teaching Center for Chemistry & Chemical Engineering Education Department of Chemistry, School of Science Tianjin University, Tianjin, 300354, P. R. China
| | - Guangjiu Zhao
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences National Demonstration Center for Experimental Chemistry & Chemical engineering Education National Virtual Simulation Experimental Teaching Center for Chemistry & Chemical Engineering Education Department of Chemistry, School of Science Tianjin University, Tianjin, 300354, P. R. China
| |
Collapse
|
8
|
Harmalkar DS, Lee SJ, Lu Q, Kim MI, Park J, Lee H, Park M, Lee A, Lee C, Lee K. Identification of novel non-nucleoside vinyl-stilbene analogs as potent norovirus replication inhibitors with a potential host-targeting mechanism. Eur J Med Chem 2019; 184:111733. [PMID: 31604163 DOI: 10.1016/j.ejmech.2019.111733] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/16/2019] [Accepted: 09/22/2019] [Indexed: 11/25/2022]
Abstract
Norovirus (NV), is the most common cause of acute gastroenteritis worldwide. To date, there is no specific anti-NV drug or vaccine to treat NV infections. In this study, we evaluated the inhibitory effect of different stilbene-based analogs on RNA genome replication of human NV (HNV) using a virus replicon-bearing cell line (HG23). Initial screening of our in-house chemical library against NV led to the identification of a hit containing stilbene scaffold 5 which on initial optimization gave us a vinyl stilbene compound 16c (EC50 = 4.4 μM). Herein we report our structure-activity relationship study of the novel series of vinyl stilbene analogs that inhibits viral RNA genome replication in a human NV-specific manner. Among these newly synthesized compounds, several amide derivatives of vinyl stilbenes exhibited potent anti-NV activity with EC50 values ranging from 1 to 2 μM. A trans-vinyl stilbenoid with an appended substituted piperazine amide (18k), exhibited potent anti-NV activity and also displayed favorable metabolic stability. Compound 18k demonstrated an excellent safety profile, the highest suppressive effect, and was selective for HNV replication via a viral RNA polymerase-independent manner. Its potential host-targeting antiviral mechanism was further supported by specific activation of heat shock factor 1-dependent stress-inducible pathway by 18k. These results suggest that 18k might be a promising lead compound for developing novel NV inhibitors with the novel antiviral mechanism.
Collapse
Affiliation(s)
- Dipesh S Harmalkar
- College of Pharmacy, Dongguk University-Seoul, Goyang, 10326, Republic of Korea; Department of Biotechnology, Korea University, Seoul, 02841, Republic of Korea
| | - Sung-Jin Lee
- College of Pharmacy, Dongguk University-Seoul, Goyang, 10326, Republic of Korea
| | - Qili Lu
- College of Pharmacy, Dongguk University-Seoul, Goyang, 10326, Republic of Korea
| | - Mi Il Kim
- College of Pharmacy, Dongguk University-Seoul, Goyang, 10326, Republic of Korea
| | - Jaehyung Park
- College of Pharmacy, Dongguk University-Seoul, Goyang, 10326, Republic of Korea
| | - Hwayoung Lee
- College of Pharmacy, Dongguk University-Seoul, Goyang, 10326, Republic of Korea
| | - Minkyung Park
- College of Pharmacy, Dongguk University-Seoul, Goyang, 10326, Republic of Korea
| | - Ahrim Lee
- College of Pharmacy, Dongguk University-Seoul, Goyang, 10326, Republic of Korea
| | - Choongho Lee
- College of Pharmacy, Dongguk University-Seoul, Goyang, 10326, Republic of Korea.
| | - Kyeong Lee
- College of Pharmacy, Dongguk University-Seoul, Goyang, 10326, Republic of Korea.
| |
Collapse
|