InChI=1S/C21H27NO8/c1-22-10-9-14(12-5-3-2-4-6-12)28-15-8-7-13(23)11-16(15)29-21-19(26)17(24)18(25)20(27)30-21/h2-8,11,14,17-27H,9-10H2,1H3/t14-,17?,18?,19?,20?,21?/m1/s1