141363-65-7 2-Furanpropanoic acid, 5-[(2R)-3-[(2R,4aR,5aS,6S,6aR,7aS,8S,9Z,11aR,12aS,13aR,14aS,17S,18S,19aR,20aS,21aR,23aS,24aR,25aS,26aR,27aS,)-2,3,4,4a,5a,6,6a,7a,8,11,11a,12a,13,13a,14a,15,16,17,18,19a,20,20a,21a,22,23,23a,24a,25,25a,26a,27,27a-dotriacontahydro-6,17-d hydroxy-2-[(2E,4R)-5-hydroxy-2,4-dimethyl-2-pentenyl]-6a,8,12a,13a,17,27a-hexamethyl-3-methyleneoxepino[2''',3''':5'',6'']pyrano[2'',3'':5',6']pyrano[2',3':6,7]oxepino[3,2-b]pyrano[2''',3''':5'',6'']pyrano[2'',3'':5',6']pyrano[2',3':5,6]pyrano[2,3-h]oxonin-18-yl]-2-hydroxypropyl]tetrahydro-.beta.,3-dimethyl-, (.beta.S,2R,3S,5R)- AIDS-089559 AIDS089559 Gambieric acid B