(+)-3,4-Didehydrocoronaridine (+)-Catharanthine 2468-21-5 3,4-Didehydroibogamine-18-carboxylic acid methyl ester AIDS-002666 AIDS002666 Catharanthin Catharanthine Catharanthine, (+)- Ibogamine-18-carboxylic acid, 3,4-didehydro-, methyl ester, (2a,5b,6a,18b)-