Buphanisin

Buphanisine

Epibuphanisine

1,2-Didehydro-3α-methoxycrinan

(3R)-3α-Methoxy-5β,11bβ-ethano-3,4,4aα,5,6,11b-hexahydro[1,3]dioxolo[4,5-j]phenanthridine