(-)-Interiotherin A 181701-06-4 Cycloocta(1,2-f:3,4-f')bis(1,3)benzodioxol-5-ol, 5,6,7,8-tetrahydro-13,14-dimethoxy-6,7-dimethyl-, benzoate, (5R,6S,7S,13aS)- Cycloocta(1,2-f:3,4-f')bis(1,3)benzodioxol-5-ol, 5,6,7,8-tetrahydro-13,14-dimethoxy-6,7-dimethyl-, benzoate, stereoisomer Interiotherin A