13291-80-0 24-Norchola-1,5,20,22-tetraene-4-carboxylic acid, 11-(acetyloxy)-14,15,21,23-diepoxy-6-hydroxy-4,8-dimethyl-3,7-dioxo-12-(1-oxopropoxy)-, methyl ester, (4beta,11beta,12alpha,13alpha,14beta,15beta,17alpha)- Methyl 11-(acetyloxy)-14,15,21,23-diepoxy-6-hydroxy-4,8-dimethyl-3,7-dioxo-12-(1-oxopropoxy)-24-norchola-1,5,20,22-tetraene-4-carboxylate (4beta,11beta,12alpha,13alpha,14beta,15beta,17alpha)-