[EN] PHENYL-(AZA)CYCLOALKYL CARBOXYLIC ACID GPR120 MODULATORS<br/>[FR] MODULATEURS DES RÉCEPTEURS GPR120 À BASE D'ACIDE PHÉNYL-(AZA)CYCLOALKYLCARBOXYLIQUE
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2016040225A1
公开(公告)日:2016-03-17
The present invention provides compounds of Formula (I): or a stereoisomer, or a pharmaceutically acceptable salt thereof, wherein all of the variables are as defined herein. These compounds are GPR120 G protein-coupled receptor modulators which may be used as medicaments.
into an epoxide was developed using an opticallyactive ketoiminatocobalt(II) complex as a chiral Lewis acid. In the presence of a catalytic amount of the cobalt complex and amine base, enantioselective CO 2 fixation with an epoxide proceeded with kineticresolution to afford the corresponding carbonate along with unreacted epoxide, both of which were opticallyactive. To improve their enantioselectivities
使用光学活性的酮亚氨基钴 (II) 配合物作为手性路易斯酸开发了 CO 2 对映选择性化学固定到环氧化物中。在催化量的钴络合物和胺碱的存在下,与环氧化物的对映选择性 CO 2 固定进行动力学拆分,得到相应的碳酸盐和未反应的环氧化物,两者都是光学活性的。为了提高它们的对映选择性,研究了钴配合物和胺碱的配体结构。因此,优化的催化体系成功地应用于各种环氧化物,以获得相应的光学活性环状碳酸酯,并以良好的对映选择性回收环氧化物。
Chiral Macrocyclic Organocatalysts for Kinetic Resolution of Disubstituted Epoxides with Carbon Dioxide
Among chiral macrocycles 1 synthesized, 1m with the 3,5-bis(trifluoromethyl)phenylethynyl group was the best organocatalyst for the enantioselective synthesis of cyclic carbonates from disubstituted or monosubstituted epoxides and CO2. The X-ray crystal structure of 1m revealed a well-defined chiral cavity with multiple hydrogen-bonding sites that is suitable for the enantioselective activation of
The phenyl glycidyl ether derivatives have been kinetically resolved with the growing cells of Bacillus alcalophilus MTCC10234 yielding (S)-epoxides with up to >99% ee and (R)-diols with up to 89% ee. The enantiomeric ratio (E) of up to 67 has been obtained for biohydrolysis process. The effect of different substituents of phenyl glycidyl ether on the biocatalytic efficiency of B. alcalophilus MTCC10234
Biocatalytic Thionation of Epoxides for Enantioselective Synthesis of Thiiranes
作者:Ran Ma、Xia Hua、Cheng‐Li He、Hui‐Hui Wang、Zhu‐Xiang Wang、Bao‐Dong Cui、Wen‐Yong Han、Yong‐Zheng Chen、Nan‐Wei Wan
DOI:10.1002/anie.202212589
日期:2022.12.23
A biocatalytic thionation method is presented for the enantioselective synthesis of thiiranes from epoxides by a halohydrin dehalogenase catalyzed kinetic resolution approach using thiocyanate as a sulfur donor. Various chiral thiiranes bearing aryl and alkyl substituents were synthesized in good yields and enantioselectivities by using recombinant Escherichia coli cells expressing the engineered halohydrin