Patent ID: 7842839

Claim:
A method for producing the optically active cycloalkylidenebisamidoalcohol compound represented by the formula (3): wherein R 1 represents a C1-6 alkyl group, an optionally substituted phenyl group, an optionally substituted aralkyl group or a hydrogen atom, or two R 1 s, which are bonded to the same carbon atom, are bonded to form a ring together with the carbon atom to which they are bonded, R 2 represents a C1-6 alkyl group, an optionally substituted phenyl group or an optionally substituted aralkyl group, n represents an integer of 0 to 3, and * represents an asymmetric center, which comprises reacting an optically active aminoalcohol compound represented by the formula (1): wherein R 1 , R 2 and * are as defined above, with a cycloalkylidenemalonic acid diester compound represented by the formula (2): wherein R 3 represents a C1-3 alkyl group and n represents an integer of 0 to 3, in the presence of a lithium compound.