| 摘要 |
[Subject] To provide optically active 4,4-di-substituted oxazolidine derivatives and procedures for their preparation. [Means to solve the subject] An optically active 4,4-di-substituted oxazolidine derivative having the general formula (I)
[wherein,
R 1 represents a formyl group, a hydroxymethyl group, a group of formula COOR, a halogenated methyl group, a phosphonium methyl group, or the like,
R represents a C 1 -C 6 alkyl group, or the like,
R 2 represents a C 1 -C 6 alkyl group, a C 3 -C 10 cycloalkyl group, or the like,
R 3 represents a C 2 -C 6 alkanoyl group, a C 1 -C 6 alkyloxycarbonyl group, or the like, and
R 4 represents a C 1 -C 6 alkyl group or a C 2 -C 6 alkenyl group]. |
