| abstract |
(57) [Summary] (1) The following general formula (1): [Wherein R 1 represents an alkyl group, an aryl group or an aralkyl group, and * represents the position of an asymmetric carbon], which is an optically active 5,5-diphenyl-2-oxazolidinone derivative. [Effect] When the compound of the present invention is used as a chiral auxiliary, The optically active compound can be produced selectively and in high yield. |