Synonyms: D:A-Friedo-A-homo-23,24,30-trinor-4-oxaoleana-1,20-dien-27-oicacid, 7,18-dihydroxy-5-(1-hydroxyethyl)-3-oxo-, methyl ester, [5a(R),7a]-; Chryseno[2,1-c]oxepin-13b(3H)-carboxylic acid,5,5a,6,7,7a,7b,8,9,9a,10,13,13a,14,15,15a,15b-hexadecahydro-7,13a-dihydroxy-5a-(1-hydroxyethyl)-7b,9a,12,15a-tetramethyl-3-oxo-,methyl ester, [5aS-[5aa(S*),7a,7aa,7bb,9ab,13ab,13ba,15ab,15ba]]-; Galphimin B; Galphimine B