. . . . "19,20-Dihydroervahanine A" . . . . . . . . "19,20-Dihydroervahanine_A" . . "19,20-Dihydroervahanine A" . . . . "Methyl (1S,15R,17S,18S)-17-ethyl-6-[(1S,12R,14S,15S,18S)-15-ethyl-18-methoxycarbonyl-17-methyl-10,17-diazatetracyclo[12.3.1.03,11.04,9]octadeca-3(11),4,6,8-tetraen-12-yl]-3,13-diazapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene-1-carboxylate" .