AIDS-128161 AIDS128161 Aspidospermidine-3-carboxylic acid, 4-(acetyloxy)-6,7-didehydro-15-[2-(2-ethoxy-2-oxoethyl)-2,3,4,5,6,7-hexahydro-1,5-methano-1H-azocino[4,3-b]indol-6-yl]-3-hydroxy-16-methoxy-1-methyl-, methyl ester NSC237107