Synthesis of 2-Acyl substituted chromanes and intermediates thereof
申请人:——
公开号:US20030233002A1
公开(公告)日:2003-12-18
Novel processes for producing enantiomerically enriched and enantiomerically pure compositions of 2-acyl substituted chromane compounds, and 2-acylchromane compounds that are intermediates for producing platelet aggregation inhibitors and/or are themselves potent platelet aggregation inhibitors are disclosed. Further disclosed are processes for producing salts such as acid addition salts for such enantiomerically enriched compositions.
Methods for producing chiral chromones, chromanes, amino substituted chromanes and intermediates therefor
申请人:——
公开号:US20040053992A1
公开(公告)日:2004-03-18
Disclosed are process steps and novel processes for producing chromane compositions enriched in at least one (2R or 2S) enantiomer, preferably chroman-2-yl carboxylic acid compounds and chroman-2-yl carboxylic acid esters which are intermediates for producing platelet aggregation inhibitors and/or are themselves potent platelet aggregation inhibitors. Further disclosed are enzymatic processes for resolving chiral intermediates or final products to provide desired enantiomers.
[EN] SYNTHESIS OF 2-ACYL SUBSTITUTED CHROMANES AND INTERMEDIATES THEREOF<br/>[FR] SYNTHESE DE CHROMANES A SUBSTITUTION 2-ACYLE ET DES INTERMEDIAIRES DE CEUX-CI
申请人:COR THERAPEUTICS INC
公开号:WO2001092250A2
公开(公告)日:2001-12-06
Novel processes for producing enantiomerically enriched and enantiomerically pure compositions of 2-acyl substituted chromane compounds, and 2-acylchromane compounds that are intermediates for producing platelet aggregation inhibitors and/or are themselves potent platelet aggregation inhibitors are disclosed. Further disclosed are processes for producing salts such as acid addition salts for such enantiomerically enriched compositions.
Method for resolving chiral (2s) and (2r) chromanes
申请人:——
公开号:US20040014994A1
公开(公告)日:2004-01-22
Disclosed are processes for resolving chiral (2S) and (2R) benzopyrans, racemizing benzopyrans, and recycling racemized benzopyrans to increase yield of a desired enantiomer to provide purified or substantially purified bicyclic amino substituted benzopyran derivatives. Such benzopyran derivatives are preferably chromans which can be coupled with benzoyl derivatives via an amide bond to produce potent platelet aggregation inhibitors.