InChI=1S/C21H32O5/c1-19-7-5-13(23)9-12(19)3-4-14-15-6-8-21(26,17(25)11-22)20(15,2)10-16(24)18(14)19/h3,13-16,18,22-24,26H,4-11H2,1-2H3/t13?,14?,15?,16?,18?,19?,20?,21-/m0/s1