24-Norchola-20,22-diene-4-carboxaldehyde, 2,3-bis(acetyloxy)-14,15:21,23-diepoxy-4,8-dimethyl-11-oxo-1,7,19-trihydroxy-, cyclic 4,19-(2-methyl-1-oxopropylacetal), (1-alpha,2-alpha,3-alpha,4-beta(S),5-alpha,7-alpha,13-alpha,14-beta,15-beta,17-alpha)- 87617-82-1 Meliatoxin A2