under the conditions described for alkaline hydrolysis of reserpine and rescinnamine in absolute and aqueous methanol , and after esterification ( with diazomethane ) of the resulting acid fraction , methyl 3,4,5-trimethoxybenzoate was quantitatively recovered , whereas methyl trans-3,4,5-trimethoxycinnamate , in normal lighting conditions , was either partly isomerized to methyl cis-trimethoxycinnamate or formed an adduct with a molecule of methanol , yielding methyl 3-methoxy-3- ( 3,4,5-trimethoxyphenyl ) propionate .
C0035179
reserpine
C0035167
absolute