1H,3H-Naphtho[2',1':4,5]indeno[1,7a-c]furan-1-one, 3a,4,5,5a,5b,6,7,7a,8,9,10,11,11a,13-tetradecahydro-13-hydroxy-3,5a,8,8,11a-pentamethyl-9-[[O-3-O-methyl-D-glucopyranosyl-(1-