17-dehydropreakuammicine => 3,17-didehydrostemmadenine
17-dehydropreakuammicine => 3,17-didehydrostemmadenine
17-dehydropreakuammicine => 3,17-didehydrostemmadenine
17-dehydropreakuammicine => 3,17-didehydrostemmadenine