2-Furanpropanoic acid, 5-(3-(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-dihydroxy-2-(5-hydroxy-2,4-dimethyl-2-pentenyl)-6a,8,12a,13a,27a-pentamethyl-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-