25850-22-0 
 
1102-88-1 
 
4-{(5R,8R,9S,10S,13R,14S,17R)-3-(E)-2,2-Dimethyl-tetrahydro-pyran-4-ylimino-14-hydroxy-10,13-dimethyl-hexadecahydro-cyclopentaaphenanthren-17-yl}-5H-furan-2-one 
[1]ChemistryofNaturalCompounds,2005,vol.41,p.52-55
25850-22-0 
 
66-28-4 
 
4-{10-(2,2-dimethyl-tetrahydro-pyran-4-ylimino)-methyl-3,5,14-trihydroxy-13-methyl-hexadecahydro-cyclopenta<i>a</i>phenanthren-17-yl}-5<i>H</i>-furan-2-one 
[1]ChemistryofNaturalCompounds,2005,vol.41,p.332-335