InChI=1S/C21H32O5/c1-20-7-6-13(24)8-12(20)2-3-14-15-4-5-16(18(26)10-22)21(15,11-23)9-17(25)19(14)20/h11-17,19,22,24-25H,2-10H2,1H3/t12?,13-,14?,15?,16?,17?,19?,20?,21?/m1/s1