InChI=1S/C22H25NO6S/c1-26-17-8-6-13-14(10-16(17)24)15(23-19(25)11-30)7-5-12-9-18(27-2)21(28-3)22(29-4)20(12)13/h6,8-10,15,30H,5,7,11H2,1-4H3,(H,23,25)/t15-/m0/s1