1
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Luo P, Li J, Deng YH, Yu P, Wang Y, Peng F, Shao Z. Switchable Chemo-, Regio- and Pseudo-Stereodivergence in Palladium-Catalyzed Cycloaddition of Allenes. Angew Chem Int Ed Engl 2024:e202412179. [PMID: 38990010 DOI: 10.1002/anie.202412179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2024] [Revised: 07/09/2024] [Accepted: 07/11/2024] [Indexed: 07/12/2024]
Abstract
Here, we report a strategy enabling triple switchable chemo-, regio-, and stereodivergence in newly developed palladium-catalyzed cycloadditions of allenes. An asymmetric pseudo-stereodivergent cycloaddition of allenes bearing a primary leaving group at the α-position, where a dynamic kinetic asymmetric hydroalkoxylation of racemic unactivated allenes was the enantio-determining step, is realized, providing four stereoisomers [(Z,R), (Z,S), (E,S), and (E,R)] containing a di-substituted alkene scaffold and a stereogenic center. By tuning reaction conditions, a mechanistically distinctive cycloaddition is uncovered selectively with the same set of substrates. By switching the position of the leaving group of allenes, a cycloaddition involving an intermolecular O-attack is disclosed. Diverse mechanisms of the cycloaddition reactions of allenes enable rapid access to structurally and stereochemically diverse 3,4-dihydro-2H-1,4-benzoxazines in high efficiency and selectivity.
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Affiliation(s)
- Pengfei Luo
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650500, China
| | - Jinxia Li
- Department of Chemistry and Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Yu-Hua Deng
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650500, China
| | - Peiyuan Yu
- Department of Chemistry and Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Yingcheng Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650500, China
| | - Fangzhi Peng
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650500, China
| | - Zhihui Shao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, 650500, China
- Southwest United Graduate School, Kunming, 650092, China
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2
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Li WX, Yu L, Chi JB, Wang JP, Liu YJ, Wang CH, Zhang M, Hou GG. Discovery of anti-inflammatory agents from 3, 4-dihydronaphthalene-1(2H)-one derivatives by inhibiting NLRP3 inflammasome activation. Eur J Med Chem 2024; 268:116284. [PMID: 38442430 DOI: 10.1016/j.ejmech.2024.116284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/22/2024] [Accepted: 02/23/2024] [Indexed: 03/07/2024]
Abstract
NLRP3 inflammatory vesicles are a polymer of cellular innate immunity composed of a pair of proteins. The continuous activation of NOD-like receptor pyrin domain-containing protein 3 (NLRP3) inflammatory vesicles induces the occurrence and enhancement of inflammatory response. In this study, a series of 3, 4-dihydronaphthalene-1(2H)-one derivatives (DHNs, 6a-u, 7a-e, 8a-n) were synthesized and characterized by NMR and HRMS. We evaluated the cytotoxicity and anti-inflammatory activity of all compounds in vitro, and selected 7a substituted by 7-Br in A-ring and 2-pyridylaldehyde in C-ring as effective lead compounds. Specifically, 7a can block the assembly and activation of NLRP3 inflammasome by down-regulating the expression of NLPR3 and apoptosis-associated speck-like protein containing a CARD (ASC), and inhibiting the production of reactive oxygen species (ROS) and other inflammatory mediators. In addition, 7a inhibits the phosphorylation of inhibitor kappa B alpha (IκBα) and NF-κB/p65 and the nuclear translocation of p65, thereby inhibiting nuclear factor kappa-B (NF-κB) signaling. Molecular docking analysis confirmed that 7a could reasonably bind the active sites of NLRP3, ASC and p65 proteins. Therefore, 7a is predicted as a potential NLRP3 inflammatory vesicle inhibitor and deserves further research and development.
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Affiliation(s)
- Wen-Xuan Li
- School of Pharmacy, The Key Laboratory of Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine of China, Binzhou Medical University, Yantai, 264003, PR China
| | - Lu Yu
- School of Pharmacy, The Key Laboratory of Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine of China, Binzhou Medical University, Yantai, 264003, PR China
| | - Jiang-Bo Chi
- Research and Development Department, Shandong Xianglong Medical Research Institute Co., Ltd, Yantai, 264005, PR China
| | - Ji-Peng Wang
- Research and Development Department, Shandong Xianglong Medical Research Institute Co., Ltd, Yantai, 264005, PR China
| | - Yong-Jun Liu
- School of Pharmacy, The Key Laboratory of Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine of China, Binzhou Medical University, Yantai, 264003, PR China; Research and Development Department, Shandong Xianglong Medical Research Institute Co., Ltd, Yantai, 264005, PR China
| | - Chun-Hua Wang
- School of Pharmacy, The Key Laboratory of Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine of China, Binzhou Medical University, Yantai, 264003, PR China
| | - Meng Zhang
- School of Pharmacy, The Key Laboratory of Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine of China, Binzhou Medical University, Yantai, 264003, PR China.
| | - Gui-Ge Hou
- School of Pharmacy, The Key Laboratory of Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine of China, Binzhou Medical University, Yantai, 264003, PR China; Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, 264117, PR China.
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3
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Raghava T, Banerjee S, Chattopadhyay A. Diamino-Terephthalonitrile-based Single Benzene Fluorophores Featuring Strong Solution State Fluorescence and Large Stokes Shifts. J Org Chem 2023; 88:15708-15716. [PMID: 37931905 DOI: 10.1021/acs.joc.3c01685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
1°- and 2°-amines react with tetrafluoroterephthalonitrile through SNAr chemistry, creating the strongly emissive para-diamino-terephthalonitrile type single benzene fluorophores. The regioselectivity of reaction is dictated by the sterics of the initial secondary amine adduct. The molecules exhibit strong green-yellow emission and large (nearly 150 nm) Stokes shifts. Excited state analysis reveals a cooperative effect between the para-positioned amino groups through the electron-poor terephthalonitrile unit resulting in the fluorescence amplification.
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Affiliation(s)
- Tanya Raghava
- Department of Chemistry, Birla Institute of Technology and Science Pilani, KK Birla Goa Campus, NH 17B Bypass Road, Zuarinagar, Goa 403726, India
| | - Subhadeep Banerjee
- Department of Chemistry, Birla Institute of Technology and Science Pilani, KK Birla Goa Campus, NH 17B Bypass Road, Zuarinagar, Goa 403726, India
| | - Anjan Chattopadhyay
- Department of Chemistry, Birla Institute of Technology and Science Pilani, KK Birla Goa Campus, NH 17B Bypass Road, Zuarinagar, Goa 403726, India
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4
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Cao R, Liu Y, Shi X, Zheng J. Visible-light induced cross-electrophile coupling of imines and anhydrides to synthesize α-amino ketones. Chem Commun (Camb) 2023; 59:10668-10671. [PMID: 37581330 DOI: 10.1039/d3cc03028h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
α-Amino ketones are important motifs in synthetic and medicinal chemistry. Efficient methods to directly access these motifs from feasible precursors are, however, limited. Herein, a visible-light mediated reductive cross-electrophile coupling of readily available imines and anhydrides was developed. Under mild reaction conditions, the umpolung reactivity of diverse imines engaged with anhydrides gives a variety of α-amino ketones with good yields and a broad functional group compatibility. Primary mechanistic studies revealed that this transformation might proceed through a radical-radical cross coupling pathway dominantly.
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Affiliation(s)
- Renxu Cao
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, and the School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China.
| | - Yu Liu
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, and the School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China.
| | - Xiaoxin Shi
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, and the School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China.
| | - Jun Zheng
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, and the School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China.
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5
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Qi H, Zhao Y, Li W, Chen S. Synthesis of 1,4-benzoxazines via Y(OTf) 3-catalyzed ring opening/annulation cascade reaction of benzoxazoles with propargylic alcohols. Chem Commun (Camb) 2022; 58:9120-9123. [PMID: 35880715 DOI: 10.1039/d2cc03080b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A convenient Y(OTf)3-catalyzed cascade formal [4 + 2] cyclization approach for the formation of 1,4-benzoxazine scaffolds from benzoxazoles and propargyl alcohols through a ring-opening and regioselective ring-closure process has been developed. By using this mild and practical protocol, a broad range of aldehyde-containing 1,4-benzoxazine compounds were prepared in moderate to excellent yields with good functional group tolerance. Mechanistic studies indicated that an SN1 nucleophilic substitution of benzoxazole with a propargyl cation was involved in this transformation.
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Affiliation(s)
- Hongbo Qi
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, China.
| | - Yupeng Zhao
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, China.
| | - Wencong Li
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, China.
| | - Shufeng Chen
- Inner Mongolia Key Laboratory of Fine Organic Synthesis, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, China.
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6
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Patharia MA, Raut SV, Dhotre BK, Pathan MA. Design, Synthesis of Some New N-(2-fluoro-4-morpholin-4-yl-phenyl)-Substituted-Benzamide Derivatives and Screening of Their Microbial Activities. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2020.1833047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Murtaza A. Patharia
- Research and Development, Navin Research and Innovation Centre, NFIL, Surat, Gujarat, India
| | - Santosh V. Raut
- Department of Chemistry, Maulana Azad College and Research Center, Aurangabad, Maharashtra, India
| | - Bharat K. Dhotre
- Department of Chemistry, Swami Vivekanand Sr. College, Mantha, Maharashtra, India
| | - Mohammad Arif Pathan
- Department of Chemistry, Maulana Azad College and Research Center, Aurangabad, Maharashtra, India
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7
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Bai J, Li M, Zhou C, Sha Y, Cheng J, Sun J, Sun S. Visible-Light Photoredox-Catalyzed Dicarbofunctionalization of Styrenes with Oxime Esters and CO 2: Multicomponent Reactions toward Cyanocarboxylic Acids and γ-Keto Acids. Org Lett 2021; 23:9654-9658. [PMID: 34851115 DOI: 10.1021/acs.orglett.1c03938] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A photoredox-catalyzed dicarbofunctionalization of styrenes with oxime esters and CO2 has been achieved. Notably, a series of four-, five-, or six-membered cyclic ketone oximes worked well to furnish a wide range of ε-, ζ-, and η-cyanocarboxylic acids in good yields. Furthermore, a series of γ-keto acids also could be obtained by employing acyclic ketone oxime esters as the carbonyl radical precursor. It provides convergent access to diverse biologically important cyanocarboxylic and γ-keto acids.
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Affiliation(s)
- Junxue Bai
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Miao Li
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Cong Zhou
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Yu Sha
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Jiang Cheng
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Jianwei Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.,Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon 999077, Hong Kong SAR, China
| | - Song Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
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8
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Bhosale VA, Nigríni M, Dračínský M, Císařová I, Veselý J. Enantioselective Desymmetrization of 3-Substituted Oxetanes: An Efficient Access to Chiral 3,4-Dihydro-2 H-1,4-benzoxazines. Org Lett 2021; 23:9376-9381. [PMID: 34817183 DOI: 10.1021/acs.orglett.1c03419] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein, we describe a versatile transition metal/oxidant free synthesis of the chiral 2H-1,4-benzoxazines through chiral phosphoric acid (CPA) catalyzed enantioselective desymmetrization of prochiral oxetanes (30 examples) in up to 99% yield and 99% enantioselectivity under mild reaction conditions. The reported strategy not only complements the conventional 2H-1,4-benzoxazine synthetic strategies but also provides access to key intermediates of therapeutic candidates, i.e., prostaglandin D2 receptor antagonist and M1 positive allosteric modulator (PAM) compound VU0486846.
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Affiliation(s)
- Viraj A Bhosale
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague, Czech Republic
| | - Martin Nigríni
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague, Czech Republic
| | - Martin Dračínský
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nám. 2, 160 00 Prague, Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague, Czech Republic
| | - Jan Veselý
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague, Czech Republic
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9
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DeRatt LG, Wang CY, Kuduk SD. Tandem Amination/Oxetane Ring Opening toward Benzomorpholines. J Org Chem 2021; 86:17482-17486. [PMID: 34807596 DOI: 10.1021/acs.joc.1c02166] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein, a tandem approach that allows rapid access to the benzomorpholine scaffold is reported. This operationally simple method allows for valuable heterocycles to be isolated in moderate to high yields. The overall transformation consists of an initial C-N coupling, demonstrated using traditional Ullmann or Buchwald-Hartwig conditions, followed by an in situ oxetane ring opening. A range of functionality is tolerated on the aryl ring, and the cyclization exposes a pendant hydroxymethyl substituent, providing opportunities for further functionalization.
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Affiliation(s)
- Lindsey G DeRatt
- Janssen Research and Development, 1400 McKean Road, Spring House, Pennsylvania 19477, United States
| | - Chao-Yuan Wang
- Janssen Research and Development, 1400 McKean Road, Spring House, Pennsylvania 19477, United States
| | - Scott D Kuduk
- Janssen Research and Development, 1400 McKean Road, Spring House, Pennsylvania 19477, United States
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10
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Sun D, Zhang H, Gao J, Guan X, Qin X, Jiang G, Zhang G, Zheng L, Zhang S. Asymmetric Synthesis of Spiro[3,2'-morpholine-oxindoles] Derivatives via the [5 + 1] Annulation Reaction. J Org Chem 2021; 86:16815-16823. [PMID: 34761939 DOI: 10.1021/acs.joc.1c02037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficacious method in which BINOL-type chiral imidodiphosphoric acid catalyzed the asymmetric [5 + 1] annulation reaction of 2-pyrrolylphenol with 1-methylindoline-2,3-dione was established. The strategy tolerated a broad substrate scope, and 30 examples were obtained. A range of enantioenriched spiro[3,2'-morpholine-oxindole] derivatives which incorporate a tertiary stereocenter, with moderate to excellent yields (up to 96%) and enantioselectivities (up to 99%) under mild conditions, was delivered.
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11
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Li Y, Wang XY, Ren X, Dou B, Zhu X, Hao XQ, Song MP. Iron-Mediated Selective Sulfonylmethylation of Aniline Derivatives with p-Toluenesulfonylmethyl Isocyanide (TosMIC). J Org Chem 2021; 86:7179-7188. [PMID: 33960194 DOI: 10.1021/acs.joc.1c00500] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An iron-mediated highly selective C-H sulfonylmethylation of aniline derivatives with p-toluenesulfonylmethyl isocyanide in a mixture solvent of H2O and PEG400 under an Ar atmosphere has been realized. This transformation proceeds with operational convenience, use of earth-abundant metal catalyst and nontoxic media, broad substrate scope, and good functional group tolerance. The current methodology could be applied to the regioselective C-H sulfonylmethylation of indolines, tetrahydroquinolines, and tertiary anilines.
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Affiliation(s)
- Yigao Li
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xu-Yan Wang
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xiaohuang Ren
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Baoheng Dou
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xinju Zhu
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xin-Qi Hao
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Mao-Ping Song
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
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12
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Dong K, Jin XL, Chen S, Wu LZ, Liu Q. Controllable synthesis of 2- and 3-aryl-benzomorpholines from 2-aminophenols and 4-vinylphenols. Chem Commun (Camb) 2020; 56:7941-7944. [PMID: 32531007 DOI: 10.1039/d0cc02662j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present herein a method for the controllable synthesis of 3-aryl-benzomorpholine and 2-aryl-benzomorpholine cycloadducts via cross-coupling/annulation between electron-rich 2-aminophenols and 4-vinylphenols. Molecular oxygen was successfully used in the reaction as the terminal oxidant and the complete inversion of chemoselectivity was achieved by the adjustment of the solvents and bases at room temperature.
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Affiliation(s)
- Kui Dong
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, P. R. China.
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13
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Morpholine as ubiquitous pharmacophore in medicinal chemistry: Deep insight into the structure-activity relationship (SAR). Bioorg Chem 2020; 96:103578. [PMID: 31978684 DOI: 10.1016/j.bioorg.2020.103578] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/09/2019] [Accepted: 01/09/2020] [Indexed: 12/15/2022]
Abstract
Morpholine is a versatile moiety, a privileged pharmacophore and an outstanding heterocyclic motif with wide ranges of pharmacological activities due to different mechanisms of action. The ability of morpholine to enhance the potency of the molecule through molecular interactions with the target protein (kinases) or to modulate the pharmacokinetic properties propelled medicinal chemists and researchers to synthesize morpholine ring by the efficient ways and to incorporate this moiety to develop various lead compounds with diverse therapeutic activities. The present review primarily focused on discussing the most promising synthetic leads containing morpholine ring along with structure-activity relationship (SAR) to reveal the active pharmacophores accountable for anticancer, anti-inflammatory, antiviral, anticonvulsant, antihyperlipidemic, antioxidant, antimicrobial and antileishmanial activity. This review outlines some of the recent effective chemical synthesis for morpholine ring. The review also highlighted the metabolic liability of some clinical drugs containing this nucleus and various researches on modified morpholine to enhance the metabolic stability of drugs as well. Drugs bearing morpholine ring and those under clinical trials are also mentioned with the role of morpholine and their mechanism of action. This review will provide the necessary knowledge base to the medicinal chemists in making strategic structural changes in designing morpholine derivatives.
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14
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Masoud MS, Ali AE, Elasala GS, Elwardany RE. Structural and thermal studies on some morpholine complexes. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.08.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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Wang R, Ma M, Gong X, Fan X, Walsh PJ. Reductive Cross-Coupling of Aldehydes and Imines Mediated by Visible Light Photoredox Catalysis. Org Lett 2018; 21:27-31. [DOI: 10.1021/acs.orglett.8b03394] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Rui Wang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Mengyue Ma
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Xu Gong
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Xinyuan Fan
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Patrick J. Walsh
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, P. R. China
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
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16
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Structural, spectroscopic and quantum chemical studies on copper(II) complex of 4-ethoxy-2-methyl-5-(4-morpholinyl)-3(2H)-pyridazinone. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.06.034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Lin T, Mi J, Song L, Gan J, Luo P, Mao J, Walsh PJ. Nickel-Catalyzed Desymmetrizing Cross-Electrophile Coupling of Cyclic Meso-Anhydrides. Org Lett 2018; 20:1191-1194. [DOI: 10.1021/acs.orglett.8b00114] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Tingzhi Lin
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211800, P. R. China
| | - Jianjun Mi
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211800, P. R. China
| | - Lichao Song
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211800, P. R. China
| | - Jiamin Gan
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211800, P. R. China
| | - Pan Luo
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211800, P. R. China
| | - Jianyou Mao
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211800, P. R. China
| | - Patrick J. Walsh
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211800, P. R. China
- Roy
and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
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18
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Selective synthesis of 2-aminobenzoxazoles and 2-mercaptobenzoxazoles by using o-aminophenols as starting material. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.09.092] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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19
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Yan J, Wang G, Dang X, Guo B, Chen W, Wang T, Zeng L, Wang H, Hu Y. Discovery of a low-systemic-exposure DGAT-1 inhibitor with a picolinoylpyrrolidine-2-carboxylic acid moiety. Bioorg Med Chem 2017; 25:4701-4714. [DOI: 10.1016/j.bmc.2017.07.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 07/01/2017] [Accepted: 07/06/2017] [Indexed: 10/19/2022]
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20
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Cernak T, Gesmundo NJ, Dykstra K, Yu Y, Wu Z, Shi ZC, Vachal P, Sperbeck D, He S, Murphy BA, Sonatore L, Williams S, Madeira M, Verras A, Reiter M, Lee CH, Cuff J, Sherer EC, Kuethe J, Goble S, Perrotto N, Pinto S, Shen DM, Nargund R, Balkovec J, DeVita RJ, Dreher SD. Microscale High-Throughput Experimentation as an Enabling Technology in Drug Discovery: Application in the Discovery of (Piperidinyl)pyridinyl-1H-benzimidazole Diacylglycerol Acyltransferase 1 Inhibitors. J Med Chem 2017; 60:3594-3605. [DOI: 10.1021/acs.jmedchem.6b01543] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Tim Cernak
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Nathan J. Gesmundo
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Kevin Dykstra
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Yang Yu
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Zhicai Wu
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Zhi-Cai Shi
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Petr Vachal
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Donald Sperbeck
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Shuwen He
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Beth Ann Murphy
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Lisa Sonatore
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Steven Williams
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Maria Madeira
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Andreas Verras
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Maud Reiter
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Claire Heechoon Lee
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - James Cuff
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Edward C. Sherer
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Jeffrey Kuethe
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Stephen Goble
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Nicholas Perrotto
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Shirly Pinto
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Dong-Ming Shen
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Ravi Nargund
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - James Balkovec
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Robert J. DeVita
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Spencer D. Dreher
- Department of Discovery Chemistry, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
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21
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Nakajima K, April M, Brewer JT, Daniels T, Forster CJ, Gilmore TA, Jain M, Kanter A, Kwak Y, Li J, McQuire L, Serrano-Wu MH, Streeper R, Szklennik P, Thompson J, Wang B. Discovery of diamide compounds as diacylglycerol acyltransferase 1 (DGAT1) inhibitors. Bioorg Med Chem Lett 2016; 26:1245-8. [PMID: 26804232 DOI: 10.1016/j.bmcl.2016.01.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 01/08/2016] [Accepted: 01/09/2016] [Indexed: 10/22/2022]
Abstract
Diamide compounds were identified as potent DGAT1 inhibitors in vitro, but their poor molecular properties resulted in low oral bioavailability, both systemically and to DGAT1 in the enterocytes of the small intestine, resulting in a lack of efficacy in vivo. Replacing an N-alkyl group on the diamide with an N-aryl group was found to be an effective strategy to confer oral bioavailability and oral efficacy in this lipophilic diamide class of inhibitors.
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Affiliation(s)
- Katsumasa Nakajima
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, 100 Technology Square, Cambridge, MA 02139, USA
| | - Myriam April
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, 100 Technology Square, Cambridge, MA 02139, USA
| | - Jason T Brewer
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, 100 Technology Square, Cambridge, MA 02139, USA
| | - Thomas Daniels
- Cardiovascular and Metabolism, Novartis Institutes for Biomedical Research, 100 Technology Square, Cambridge, MA 02139, USA
| | - Cornelia J Forster
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, 100 Technology Square, Cambridge, MA 02139, USA
| | - Thomas A Gilmore
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, 100 Technology Square, Cambridge, MA 02139, USA
| | - Monish Jain
- Metabolism and Pharmacokinetics, Novartis Institutes for Biomedical Research, 250 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Aaron Kanter
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, 100 Technology Square, Cambridge, MA 02139, USA
| | - Youngshin Kwak
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, 100 Technology Square, Cambridge, MA 02139, USA
| | - Jingzhou Li
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, 100 Technology Square, Cambridge, MA 02139, USA
| | - Les McQuire
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, 100 Technology Square, Cambridge, MA 02139, USA
| | - Michael H Serrano-Wu
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, 100 Technology Square, Cambridge, MA 02139, USA
| | - Ryan Streeper
- Cardiovascular and Metabolism, Novartis Institutes for Biomedical Research, 100 Technology Square, Cambridge, MA 02139, USA
| | - Paul Szklennik
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, 100 Technology Square, Cambridge, MA 02139, USA
| | - James Thompson
- Cardiovascular and Metabolism, Novartis Institutes for Biomedical Research, 100 Technology Square, Cambridge, MA 02139, USA
| | - Bing Wang
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, 100 Technology Square, Cambridge, MA 02139, USA
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22
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Lopes JLS, Beltramini LM, Wallace BA, Araujo APU. Deconstructing the DGAT1 enzyme: membrane interactions at substrate binding sites. PLoS One 2015; 10:e0118407. [PMID: 25719207 PMCID: PMC4342243 DOI: 10.1371/journal.pone.0118407] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 01/16/2015] [Indexed: 12/02/2022] Open
Abstract
Diacylglycerol acyltransferase 1 (DGAT1) is a key enzyme in the triacylglyceride synthesis pathway. Bovine DGAT1 is an endoplasmic reticulum membrane-bound protein associated with the regulation of fat content in milk and meat. The aim of this study was to evaluate the interaction of DGAT1 peptides corresponding to putative substrate binding sites with different types of model membranes. Whilst these peptides are predicted to be located in an extramembranous loop of the membrane-bound protein, their hydrophobic substrates are membrane-bound molecules. In this study, peptides corresponding to the binding sites of the two substrates involved in the reaction were examined in the presence of model membranes in order to probe potential interactions between them that might influence the subsequent binding of the substrates. Whilst the conformation of one of the peptides changed upon binding several types of micelles regardless of their surface charge, suggesting binding to hydrophobic domains, the other peptide bound strongly to negatively-charged model membranes. This binding was accompanied by a change in conformation, and produced leakage of the liposome-entrapped dye calcein. The different hydrophobic and electrostatic interactions observed suggest the peptides may be involved in the interactions of the enzyme with membrane surfaces, facilitating access of the catalytic histidine to the triacylglycerol substrates.
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Affiliation(s)
| | | | - Bonnie A. Wallace
- Institute of Structural and Molecular Biology, Birkbeck College, University of London, London, United Kingdom
- * E-mail: (APUA); (BAW)
| | - Ana P. U. Araujo
- Instituto de Física de São Carlos, USP, São Carlos, Brazil
- * E-mail: (APUA); (BAW)
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23
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Belfrage AK, Gising J, Svensson F, Åkerblom E, Sköld C, Sandström A. Efficient and Selective Palladium-Catalysed C-3 Urea Couplings to 3,5-Dichloro-2(1H)-pyrazinones. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403405] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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