Synonyms: 9H-Phenanthro[1',2':5,6]cyclohepta[1,2-b]furan-9-one,11-(acetyloxy)-1,2,3,4,4a,4b,5,6,6a,11,12,12a,12b,13,14,14a-hexadecahydro-1,1,4a,12b-tetramethyl-,(4aS,4bR,6aS,11R,12aR,12bS,14aS)- (9CI); D(17a,17b)-Dihomo-18-norpregna-17(20),17a-dien-21-oicacid, 16-(acetyloxy)-17a-hydroxy-4,4,8-trimethyl-, g-lactone, (5a,16a)-; 9H-Phenanthro[1',2':5,6]cyclohepta[1,2-b]furan-9-one,11-(acetyloxy)-1,2,3,4,4a,4b,5,6,6a,11,12,12a,12b,13,14,14a-hexadecahydro-1,1,4a,12b-tetramethyl-,[4aS-(4aa,4bb,6aa,11b,12ab,12ba,14ab)]-; Inorolide B