InChI=1S/C22H25NO5/c1-13(2)5-6-14-7-12-17-18(19(14)24)22(26,20(28-4)21(25)23-17)15-8-10-16(27-3)11-9-15/h5,7-12,20,24,26H,6H2,1-4H3,(H,23,25)/t20-,22+/m0/s1