| abstract |
OXAZOLIDINE DERIVATIVE 4,4-REPLACED OPTICALLY ACTIVE, AND PROCEDURE FOR PREPARING A COMPOUND. An optically active 4,4-bisubstituted oxazolidine derivative and method for producing the same are disclosed. Specifically disclosed is an optically active 4,4-bisubstituted oxazolidine derivative represented by the following formula (I). (In the above formula, 'represents a formyl group, hydroxymethyl group, COOR, halogenated methyl group, methyl phosphonium group or the like; R represents a C 1 -C 6 alkyl group or the like; R 2 represents a C 1 alkyl group C 1-6, C 3-3 cycloalkyl group or the like, R 3 represents a C 2-6 alkanoyl group, C 1-6 alkyloxycarbonyl group or the like and R 4 represents a C 1 -C 6 alkyl group or C 2 -C 6 alkenyl group. |