Method for preparing chiral gamma-secondary amino alcohol
申请人:SHANGHAI JIAO TONG UNIVERSITY
公开号:US10370323B2
公开(公告)日:2019-08-06
A method for preparing chiral γ-secondary amino alcohol includes: adding into a solvent an acid addition salt of β-secondary amino ketone represented by general formula (1), an alkali, a metal salt additive and a diphosphine-rhodium complex, so as to carry out a reaction in a hydrogen atmosphere and obtain a chiral γ-secondary amino alcohol compound represented by general formula (2). In general formula (2), Ar represents an aryl group with or without substituent group(s), R represents an alkyl group or an aralkyl group, and HY represents an acid. The synthesis scheme has a simple process, the metal salt additive remarkably improves the effect of a rhodium-catalyzed asymmetric hydrogenation technology, and accordingly, the reaction yield and the optical purity of a product are improved, the production process is simplified, production costs are reduced, and the synthesis scheme is highly suitable for mass industrial production.
Compounds having formula (I) (IX), and enantiomers, and diastereomers, stereoisomers, pharmaceutically acceptable salts and prodrugs thereof, are useful as kinase modulators, including RIPK1 modulation. All the variables are as defined herein: (I), (II), (III), (IV), (V), (VI), (VII), (VIII), (IX).
METHOD FOR PREPARING CHIRAL gamma-SECONDARY AMINO ALCOHOL
申请人:SHANGHAI JIAO TONG UNIVERSITY
公开号:US20170275240A1
公开(公告)日:2017-09-28
A method for preparing chiral γ-secondary amino alcohol includes: adding into a solvent an acid addition salt of β-secondary amino ketone represented by general formula (1), an alkali, a metal salt additive and a diphosphine-rhodium complex, so as to carry out a reaction in a hydrogen atmosphere and obtain a chiral γ-secondary amino alcohol compound represented by general formula (2). In general formula (2), Ar represents an aryl group with or without substituent group(s), R represents an alkyl group or an aralkyl group, and HY represents an acid. The synthesis scheme has a simple process, the metal salt additive remarkably improves the effect of a rhodium-catalyzed asymmetric hydrogenation technology, and accordingly, the reaction yield and the optical purity of a product are improved, the production process is simplified, production costs are reduced, and the synthesis scheme is highly suitable for mass industrial production.
TRIAZOLOPYRIDINYL COMPOUNDS AS KINASE INHIBITORS
申请人:BRISTOL-MYERS SQUIBB COMPANY
公开号:US20220119388A1
公开(公告)日:2022-04-21
Compounds having formula (I), and enantiomers, and diastereomers, stereoisomers, pharmaceutically-acceptable salts thereof,
are useful as kinase modulators, including RIPK1 modulation. All the variables are as defined herein.