InChI=1/C21H25NO6/c1-12(2)14-6-13(3)7-16(8-14)28-21(24)15-9-17(25-4)20(18(10-15)26-5)27-11-19(22)23/h6-10,12H,11H2,1-5H3,(H2,22,23)/f/h22H2 ED66ACDD92F41CEA