( -)-Nirtetralin 50656-78-5 78185-63-4 Naphtho(2,3-d)-1,3-dioxole, 5-(3,4-dimethoxyphenyl)-5,6,7,8-tetrahydro-4-methoxy-6,7-bis(methoxymethyl)-, (5R,6S,7S)-rel- Naphtho(2,3-d)-1,3-dioxole, 5-(3,4-dimethoxyphenyl)-5,6,7,8-tetrahydro-4-methoxy-6,7-bis(methoxymethyl)-, (5alpha,6beta,7alpha)-