( )-Schefflone 4',6',7-triisopropyl-3',4a',5',6,7',8-hexamethoxy-3,4,9',9a'-tetrahydrospiro[chromene-2,1'-xanthen]-2'(4a'H)-one InChI=1/C36H48O9/c1-18(2)26-23(38-7)15-21-13-14-35(44-29(21)31(26)40-9)25-17-22-16-24(39-8)27(19(3)4)32(41-10)30(22)45-36(25,43-12)28(20(5)6)33(42-11)34(35)37/h15-16,18-20,25H,13-14,17H2,1-12H spiro[2H-1-benzopyran-2,1'-[1H]xanthen]-2'(9'H)-one, 3,4,4'a,9'a-tetrahydro-3',4'a,5',6,7',8-hexamethoxy-4',6',7-tris(1-methylethyl)-