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Suzuki-Miyaura cross-coupling of 3,4-disubstituted 5-bromoisoxazoles: An efficient access to trisubstituted isoxazoles. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Egami H, Rouno T, Niwa T, Masuda K, Yamashita K, Hamashima Y. Asymmetric Dearomative Fluorination of 2‐Naphthols with a Dicarboxylate Phase‐Transfer Catalyst. Angew Chem Int Ed Engl 2020; 59:14101-14105. [DOI: 10.1002/anie.202005367] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 05/08/2020] [Indexed: 11/09/2022]
Affiliation(s)
- Hiromichi Egami
- School of Pharmaceutical Sciences University of Shizuoka 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
| | - Taiki Rouno
- School of Pharmaceutical Sciences University of Shizuoka 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
| | - Tomoki Niwa
- School of Pharmaceutical Sciences University of Shizuoka 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
| | - Kousuke Masuda
- School of Pharmaceutical Sciences University of Shizuoka 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
| | - Kenji Yamashita
- School of Pharmaceutical Sciences University of Shizuoka 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
| | - Yoshitaka Hamashima
- School of Pharmaceutical Sciences University of Shizuoka 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
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Egami H, Rouno T, Niwa T, Masuda K, Yamashita K, Hamashima Y. Asymmetric Dearomative Fluorination of 2‐Naphthols with a Dicarboxylate Phase‐Transfer Catalyst. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005367] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hiromichi Egami
- School of Pharmaceutical Sciences University of Shizuoka 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
| | - Taiki Rouno
- School of Pharmaceutical Sciences University of Shizuoka 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
| | - Tomoki Niwa
- School of Pharmaceutical Sciences University of Shizuoka 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
| | - Kousuke Masuda
- School of Pharmaceutical Sciences University of Shizuoka 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
| | - Kenji Yamashita
- School of Pharmaceutical Sciences University of Shizuoka 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
| | - Yoshitaka Hamashima
- School of Pharmaceutical Sciences University of Shizuoka 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
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Janas A, Przybylski P. 14- and 15-membered lactone macrolides and their analogues and hybrids: structure, molecular mechanism of action and biological activity. Eur J Med Chem 2019; 182:111662. [DOI: 10.1016/j.ejmech.2019.111662] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 08/12/2019] [Accepted: 08/29/2019] [Indexed: 11/15/2022]
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Zhao ZH, Zhang XX, Jin LL, Yang S, Lei PS. Synthesis and antibacterial activity of novel ketolides with 11,12-quinoylalkyl side chains. Bioorg Med Chem Lett 2018; 28:2358-2363. [DOI: 10.1016/j.bmcl.2018.06.039] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 06/17/2018] [Accepted: 06/18/2018] [Indexed: 11/29/2022]
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6
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Zhu Y, Han J, Wang J, Shibata N, Sodeoka M, Soloshonok VA, Coelho JAS, Toste FD. Modern Approaches for Asymmetric Construction of Carbon-Fluorine Quaternary Stereogenic Centers: Synthetic Challenges and Pharmaceutical Needs. Chem Rev 2018; 118:3887-3964. [PMID: 29608052 DOI: 10.1021/acs.chemrev.7b00778] [Citation(s) in RCA: 423] [Impact Index Per Article: 70.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
New methods for preparation of tailor-made fluorine-containing compounds are in extremely high demand in nearly every sector of chemical industry. The asymmetric construction of quaternary C-F stereogenic centers is the most synthetically challenging and, consequently, the least developed area of research. As a reflection of this apparent methodological deficit, pharmaceutical drugs featuring C-F stereogenic centers constitute less than 1% of all fluorine-containing medicines currently on the market or in clinical development. Here we provide a comprehensive review of current research activity in this area, including such general directions as asymmetric electrophilic fluorination via organocatalytic and transition-metal catalyzed reactions, asymmetric elaboration of fluorine-containing substrates via alkylations, Mannich, Michael, and aldol additions, cross-coupling reactions, and biocatalytic approaches.
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Affiliation(s)
- Yi Zhu
- School of Chemistry and Chemical Engineering, State Key laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials , Nanjing University , 210093 Nanjing , China
| | - Jianlin Han
- School of Chemistry and Chemical Engineering, State Key laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials , Nanjing University , 210093 Nanjing , China
| | - Jiandong Wang
- Department of Nanopharmaceutical Sciences & Department of Frontier Materials , Nagoya Institute of Technology , Gokiso, Showa-ku , Nagoya 466-8555 , Japan
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences & Department of Frontier Materials , Nagoya Institute of Technology , Gokiso, Showa-ku , Nagoya 466-8555 , Japan
| | - Mikiko Sodeoka
- Synthetic Organic Chemistry Laboratory , RIKEN, and RIKEN Center for Sustainable Resourse Science , 2-1 Hirosawa , Wako 351-0198 , Japan
| | - Vadim A Soloshonok
- Department of Organic Chemistry I, Faculty of Chemistry , University of the Basque Country UPV/EHU , 20018 San Sebastian , Spain.,IKERBASQUE, Basque Foundation for Science , 48011 Bilbao , Spain
| | - Jaime A S Coelho
- Department of Chemistry , University of California , Berkeley , California 94720 , United States
| | - F Dean Toste
- Department of Chemistry , University of California , Berkeley , California 94720 , United States
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Synthesis and antibacterial activity of novel 11-[3-[(arylcarbamoyl)oxy]propylamino]-11-deoxy-6-O-methyl-3-oxoerythromycin A 11-N,12-O-cyclic carbamate derivatives. J Antibiot (Tokyo) 2016; 69:811-817. [PMID: 27118243 DOI: 10.1038/ja.2016.42] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 02/24/2016] [Accepted: 03/14/2016] [Indexed: 11/08/2022]
Abstract
A series of novel 11-[3-[(arylcarbamoyl)oxy]propylamino]-11-deoxy-6-O-methyl-3-oxoerythromycin A 11-N,12-O-cyclic carbamate derivatives (6a-h) were designed, synthesized and evaluated for their antibacterial activities in vitro. Most of these compounds had significant antibacterial activity against two groups of pathogens of Methicillin-sensitive Staphylococcus aureus (MIC50=0.031-2 μg ml-1) except 6g and Methicillin-sensitive S. epidermidis (MIC50=0.031-0.5 μg ml-1). MIC90 of 6d against Methicillin-resistant S. epidermidis was at least 16-fold better than that of erythromycin (EMA), azithromycin (AZM) and ABT-773. 6d and 6e had more potent antibacterial activity against S. pneumoniae than EMA, AZM and ABT-773. In particular, compounds 6d and 6e also showed relatively potent activity against Haemophilus influenzae and Streptococcus hemolyticus.
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