Synonyms: A-Homo-24-nor-4-oxa-6,7-secochola-7,20,22-triene-1,6,11-tricarboxylicacid, 14,15:21,23-diepoxy-4a-(hydroxymethyl)-12-[(2-hydroxy-3-methyl-1-oxopentyl)oxy]-4a-methyl-3-oxo-,d-lactone, 1-methyl ester, [1a,4ab,5b,11b,12a(2R,3R),13a,14b,15b,17a]-; Guarea B; Indeno[1,7a-b]oxirene-5-carboxylic acid,3-(3-furanyl)octahydro-4-[(2-hydroxy-3-methyl-1-oxopentyl)oxy]-3a-methyl-7-methylene-6-[octahydro-4-(methoxycarbonyl)-5,9a-dimethyl-2,7-dioxo-2H-pyrano[3,4-b]oxepin-5-yl]-,[1aR-[1aa,3a,3aa,4a(2R*,3R*),5b,6b(4S*,5R*,5aR*,9aS*),7aS*]]-