Patent ID: 6902687

Claim:
An optically active isosorbide derivative represented by the following general formula (I): wherein R 1 and R 9 each independently represent a member selected from the group consisting of an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, an alkoxy group, an aryloxy group and —NR 17 R 18 , wherein R 17 and R 18 each independently represent a member selected from the group consisting of a hydrogen atom, an alkyl group and an aryl group; R 2 and R 10 each independently represent a member selected from the group consisting of a hydrogen atom, an alkyl group and an aryl group; R 3 to R 6 and R 11 to R 14 each independently represent a member selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group and an alkoxy group; R 7 , R 15 , R 8 and R 16 each independently represent a hydrogen atom or an alkyl group; and R 2 and R 4 , and R 10 and R 12 may in each combination be combined with each other to form a 5- or 6-membered ring.