Processes for producing optically active 2-thiomethyl-3-phenylpropionic acid derivative and for producing intermediate therefor
申请人:Ohishi Takahiro
公开号:US20060089503A1
公开(公告)日:2006-04-27
The present invention provides a process for simply producing an optically active 2-thiomethyl-3-phenylpropionic acid derivative useful as an intermediate for medicines from inexpensive raw materials. An optically active 2-hydroxymethyl-3-phenylpropionic acid ester derivative which can be relatively easily obtained by asymmetric reduction reaction with an enzyme is cyclized to an optically active P-lactone derivative which is then reacted with a sulfur compound to produce an optically active 2-thiomethyl-3-phenylpropionic acid derivative in high yield.
PROCESSES FOR PRODUCING OPTICALLY ACTIVE 2-THIOMETHYL-3-PHENYLPROPIONIC ACID DERIVATIVE AND FOR PRODUCING INTERMEDIATE THEREFOR
申请人:KANEKA CORPORATION
公开号:EP1577310A1
公开(公告)日:2005-09-21
The present invention provides a process for simply producing an optically active 2-thiomethyl-3-phenylpropionic acid derivative useful as an intermediate for medicines from inexpensive raw materials. An optically active 2-hydroxymethyl-3-phenylpropionic acid ester derivative which can be relatively easily obtained by asymmetric reduction reaction with an enzyme is cyclized to an optically active β-lactone derivative which is then reacted with a sulfur compound to produce an optically active 2-thiomethyl-3-phenylpropionic acid derivative in high yield.