InChI=1/C21H29NO7/c1-13(24)22-11-16(14-9-7-8-10-15(14)22)28-21(6)20(5,27)19(4,26)18(3,25)17(2,12-23)29-21/h7-11,23,25-27H,12H2,1-6H3/t17-,18-,19+,20+,21+/m0/s1 72ADD052BF3352A0