Method for producing optically active compound

A process for preparing an optically active compound represented by formula (3):

• (wherein
• R5 represents a hydrogen atom, or a C1-C6 alkyl group which may optionally have one or more substituents,
• R6 and R7 each independently represents a hydrogen atom, or a C1-C6 alkyl group;
• R8 represents a C1-C6 alkyl group;
• and
• R9, R10 and R11 each independently represents a hydrogen atom, a halogen atom, an amino group, a hydroxy group, a C1-C6 alkyl group which may optionally have one or more substituents, a C1-C6 alkoxy group which may optionally have one or more substituents, a C2-C7 alkylcarbonyl group which may optionally have one or more substituents, or a C6-C10 aryl group which may optionally have one or more substituents;
• and
• the carbon atom with a symbol of the asterisked “*” represents an asymmetric carbon atom),
• which comprises reacting a compound represented by formula (2):
• (wherein each of R5, R6, R7, R8, R9, R10, and R11 has the same meanings as described above)
• with hydrogen in the presence of an asymmetric cobalt complex.