PROCESS FOR PREPARING (S)-(+)-N-METHYL-3-(1-NAPHTHYLOXY)-3-(2-THIENYL)PROPYLAMINE BY USING OPTICALLY ACTIVE METHYLHYDROXYLAMINOPROPANOL COMPOUND AS INTERMEDIATE
申请人:Chen Bo-Fong
公开号:US20110275835A1
公开(公告)日:2011-11-10
The present invention provides (S)-methylhydroxylaminopropanol compound as an intermediate in preparation of (S)-(+)-N-methyl-3-(1-naphthyloxy)-3-(2-thienyl)propylamine. The present invention also provides a process for preparing (S)-(+)-N-methyl-3-(1-naphthyloxy)-3-(2-thienyl)propylamine with higher yield and lower cost by using the (S)-methylhydroxylaminopropanol compound as an intermediate.
OPTICALLY ACTIVE METHYLHYDROXYLAMINOPROPANOL DERIVATIVE AND ITS USE AS INTERMEDIATE FOR PREPARATION OF (S)-(-)-3-METHYLAMINO-1-(-2-THIENYL)PROPAN-1-OL
申请人:CHEN Bo-Fong
公开号:US20120190869A1
公开(公告)日:2012-07-26
The present invention provides an (S)-methylhydroxylaminopropanol compound and the (S)-methylhydroxylaminopropanol compound of the present invention is used as an intermediate for preparation of (S)-(−)-3-methylamino-1-(2-thienyl)propan-1-ol, which is an intermediate for preparation of (S)-(+)-N-methyl-3-methyl-3-(1-naphthyloxy)-3-(2-thienyl)propylamine oxalate. The present invention also provides a process for preparing (S)-(+3-methylamino-1-(2-thienyl)propan-1-ol with higher yield and lower cost, wherein the (S)-methylhydroxylaminopropanol compound is used as an intermediate.
The invention is new renin inhibitor depeptide and tripeptide derivatives of the formula:
本发明是式中的新型肾素抑制剂二肽和三肽衍生物:
Catalytic asymmetric addition of aldehydes using organolithium reagents in the presence of commercial available chiral diol ligands
作者:Hua Zong、Huayin Huang、Ling Song
DOI:10.1016/j.tetasy.2016.08.016
日期:2016.11
An efficient method for the catalytic asymmetric additions to aldehydes using organolithium reagents and titanium(IV) isopropoxide in the presence of commercially available and relatively inexpensive diol ligands, such as (S)-BINOL or D-TADDOL has been developed. Good to excellent yields (up to 92%) and enantioselectivities (up to 94%) of the corresponding secondary alcohol products can be obtained following a simple procedure at relatively mild reaction temperatures. (C) 2016 Published by Elsevier
PROCESS FOR THE PREPARATION OF N -MONOSUBSTITUTED BETA-AMINO ALCOHOLS