Pretazettine

Isotazettine

(6aβ)-6a-Deoxy-8β-hydroxytazettine

(3S,13bS)-3,4,4aβ,5,6,6aβ-Hexahydro-3-methoxy-5-methyl-8H-[1,3]dioxolo[6,7][2]benzopyrano[3,4-c]indol-8β-ol