Patent ID: 7671213

Claim:
An optically active bisoxazoline compound represented by the formula (1): wherein R 1 and R 2 are the same, and each represents a C 1-6 alkyl group, a substituted or unsubstituted aralkyl group, or a substituted or unsubstituted phenyl group, or R 1 and R 2 are bonded each other together with the carbon atom of the oxazoline ring to which they are bonded to form a ring; R 3 represents a substituted or unsubstituted naphthyl group; R 4 and R 5 are the same and each represents a hydrogen atom or a C 1-6 alkyl group, or R 4 and R 5 are bonded each other together with the carbon atom to which they are bonded to form a cycloalkyl ring having 3 to 6 carbon atoms; and * represents an asymmetric center.