Crinan

Crinane

2,3,4,4aα-Tetrahydro-1H,6H-5β,11bβ-ethano[1,3]dioxolo[4,5-j]phenanthridine

(4aR,4aα,5β,11bβ)-2,3,4,4a-Tetrahydro-1H,6H-5,11b-ethano[1,3]dioxolo[4,5-j]phenanthridine