aspidospermidine-3-carboxylicacid,4-(acetyloxy)-6,7-didehydro-3-hydroxy-16-me

(2beta,3beta,4beta,5alpha,12beta,19alpha)-4-(Acetyloxy)-6,7-didehydro-3-hydroxy-16-Methoxy-1-Methyl-aspidosperMidine

(2β,5α,12β,19α)-1-Methyl-3-hydroxy-4β-acetoxy-16-methoxy-6,7-didehydroaspidospermidine-3α-carboxylic acid methyl ester

(2β,5α,12β,19α)-4β-Acetyloxy-6,7-didehydro-3β-hydroxy-16-methoxy-1-methylaspidospermidine-3-carboxylic acid methyl ester