Synonyms: 7,11-Methano-2H-cycloocta[f][2]benzopyran-8-aceticacid,10-(acetyloxy)-4-(3-furanyl)-1,4,4a,5,6,7,8,9,10,11,12,12b-dodecahydro-4a,7,9,9-tetramethyl-2,13-dioxo-,methyl ester, [4R-(4a,4aa,7a,8a,10b,11a,12ba)]-; 7,11-Methano-2H-cycloocta[f][2]benzopyran-8-acetic acid, 4b-(3-furyl)-1,4,4a,5,6,7,8a,9,10,11a,12,12bb-dodecahydro-10a-hydroxy-4ab,7a,9,9-tetramethyl-2,13-dioxo-, methyl ester, acetate,(-)- (8CI); Angustinolide