申请人:PFIZER IRELAND PHARMACEUTICALS
公开号:WO2010070593A2
公开(公告)日:2010-06-24
The invention provides a compound of formula (I), in an enantiomerically enriched form; wherein R1 and R2 are each independently selected from optionally substituted alkyl, cycloalkyl, aryl-alkyl and aryl, wherein the 3S-enantiomer is present in excess and the enantiomeric excess is at least 10%. There is also provided a method of preparing, in an enantiomerically enriched form, the compound of formula (I). Use of a compound of formula (I) in a method of preparing pregabalin is also discussed.