(16R)-1-Methyl-3-oxovobasan-17-oic acid methyl ester hydrochloride 16-Epiochropamine hydrochloride 71339-13-4 Epi-16 ochropamine chlorhydrate Vobasan-17-oic acid, 1-methyl-3-oxo-, methyl ester, hydrochloride, (16-R)-