158268-23-6 3'-O-alpha-D-Forosaminyl-(+)-griseusin A Spiro(5H-furo(3.2-b)naphtho(2,3-d)pyran-5,2'-(2H)pyran-2,6,11(3H)-trione, 4'-(acetyloxy)-3'-((5-(dimethylamino)tetrahydro-6-methyl-2H-pyran-2-yl)oxy)-3',3a,4',5',6',11b-hexahydro-7-hydroxy-6'-methyl-, (2'R-(2'-alpha(3aR*,11bR*),3'-alpha(2R*,5S*,6R*),4'-alpha,6'-beta))-