Criwelline

3-Epitazettine

(3α)-Tazettine

(3R,4aβ,6aα,13bS)-4,4a,5,6-Tetrahydro-3-methoxy-5-methyl-8H-[1,3]dioxolo[6,7][2]benzopyrano[3,4-c]indol-6a(3H)-ol