1H-pyrrole-2-carboxylic acid, (6S,6aS,8S,8aR,9S)-9-carboxydodecahydro-4,6,7,8b,9a-pentahydroxy-3,6a-dimethyl-7-(1-methylethyl)-6,9-methanobenzo[1,2]pentaleno[1,6-bc]furan-8-yl ester 20-Norspiganthine-5-carboxylic acid InChI=1/C25H33NO10/c1-11(2)23(33)16(35-17(28)13-6-5-9-26-13)14-20(18(29)30)10-22(32)19(23,4)24(14,34)25(36-22)15(27)12(3)7-8-21(20,25)31/h5-6,9,11-12,14-16,26-27,31-34H,7-8,10H2,1-4H3,(H,29,30)/t12?,14-,15?,16-,19-,20+,21?,22-,23?,24?,25?/m0/s rel-(6R,6aR,8R,8aS,9R)-4,6,7,8b,9a-pentahydroxy-7-isopropyl-3,6a-dimethyl-8-[(1H-pyrrol-2-ylcarbonyl)oxy]decahydro-6,9-methanobenzo[1,2]pentaleno[1,6-bc]furan-9(2H)-carboxylic acid