Tropane alkaloids

Tropinone is an alkaloid, famously synthesised in 1917 by Robert Robinson as a synthetic precursor to atropine, a scarce commodity during World War I. Tropinone and the alkaloids cocaine and atropine all share the same tropane core structure. Its corresponding conjugate acid at pH 7.3 major species is known as tropiniumone.

class of chemical compounds

Methylecgonidine (anhydromethylecgonine; anhydroecgonine methyl ester; AEME) is a chemical intermediate derived from ecgonine or cocaine.

thumb|alt=Photo of a bottle filled with brown bark, labelled "Catuabae Cortex"|Bottle filled with "Catuaba" bark Catuabines are a group of tropane alkaloids, isolated from Erythroxylum vaccinifolium, which are used in the preparation of the drug Catuaba (which in traditional Brazilian medicine is purported to be an aphrodisiac and central nervous system stimulant, though such claims have not been substantiated). While catuabine A, B and C were isolated and characterized by Graf and Lude (1977, 1978), catuabine D was recently isolated by Zanolari et al. The catuabines are not known to have any