[45Auto]

There is some interesting stereochemistry about this molecule including the methano bridge and the fused saturated rings. It exists in several isomeric forms and I think the natural form has a negative rotation of polarized light. Its total synthesis has been accomplished, but its not trivial. It shares with a number of other interesting drugs a tryptamine moiety, in this case imbedded along with the terpenoid-like pieces.

[Cathryn Crawford]

There is some interesting stereochemistry about this molecule including the methano bridge and the fused saturated rings. It exists in several isomeric forms and I think the natural form has a negative rotation of polarized light. Its total synthesis has been accomplished, but its not trivial. It shares with a number of other interesting drugs a tryptamine moiety, in this case imbedded along with the terpenoid-like pieces.

I agree.