pretazettine

Noun

 * 1)  A polycyclic alkaloid, (3S,4aS,6aR,13bS)-3-methoxy-5-methyl-3,4,4a,5,6,6a-hexahydro-8H-[1,3]dioxolo[6,7]isochromeno[3,4-c]indol-8-ol, present in liliies of the family