1617-90-9 InChI=1/C21H26N2O3/c1-3-20-10-6-11-22-12-9-15-14-7-4-5-8-16(14)23(17(15)18(20)22)21(25,13-20)19(24)26-2/h4-5,7-8,18,25H,3,6,9-13H2,1-2H VINCAMINE EPIMERES eburnamenine-14-carboxylic acid, 14,15-dihydro-14-hydroxy-, methyl ester methyl 14-hydroxy-14,15-dihydroeburnamenine-14-carboxylate