164071-56-1Relevant articles and documents
Bioreductive production of enantiopure (S)-duloxetine intermediates catalyzed with ketoreductase ChKRED15
Ren, Zhi-Qiang,Liu, Yan,Pei, Xiao-Qiong,Wang, Hai-Bo,Wu, Zhong-Liu
, p. 76 - 81 (2015)
The blockbuster antidepressant drug duloxetine contains one stereo-center derived from chiral alcohol intermediates. The stereoselective bioreductive production of five of such intermediates could be achieved using the recombinant ketoreductase ChKRED15, yielding the enantiopure (S)-alcohols with >99% ee. Sequence alignment indicated that ChKRED15 lacks the conserved G-rich motif, which was then amended by a single mutation of S12G. The resulting S12G mutant displayed significantly improved catalytic activity and protein stability. When coupled with a cofactor recycling system, the S12G mutant was able to catalyze the complete conversion of ethyl 3-oxo-3-(thiophen-2-yl)propanoate within 6 h and N-methyl-3-oxo-3-(thiophen-2-yl)propanamide within 24 h at substrate concentrations of 10 and 50 g/l, respectively, without the compromise of enantioselectivity.
Method for preparation of optically active 3-amino-arylpropan-1-ol derivatives from 3-chloro-1-arylpropan-1-ol derivatives
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Paragraph 0054-0057, (2016/12/01)
The present invention relates to a method for preparing an optically active 3-amino-1-arylpropan-1-ol derivative, including the step of making an optically active 3-chloro-1-arylpropan-1-ol compound react with an amine derivative. The method according to the present invention allows direct amination of an optically active 3-chloro-1-arylpropan-1-ol derivative through a single-step reaction. Thus, it is possible to provide a compound functioning as a key intermediate of various optically active molecules through a simple process with high yield, while maintaining the optical purity of the reactant. Therefore, the method may be used for preparing medicines, such as (S)-Duloxetin, (R)-Fluoxetine, (R)- Tomoxetine or (R)- Nisoxetine, with high optical purity by combining the method for preparing an optically active 3-chloro-1-arylpropan-1-ol derivative as a reactant of the method with an additional substitution reaction.(AA) Tomoxetine(BB) Fluoxetine(CC) 3-amino-1-propanol(DD) Nisoxetine(EE) DuloxetineCOPYRIGHT KIPO 2016
A practical synthesis of the antidepressant (S)-duloxetine
Lee, Sun-Ah,Sadu, Venkata Subbaiah,Park, No-Joong,Hwang, In-Taek,Lee, Kee-In
, p. 1894 - 1896 (2014/07/07)
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