InChI=1S/C21H30O5/c1-12(23)21(26)8-6-16-15-4-3-13-9-14(24)5-7-20(13,11-22)18(15)17(25)10-19(16,21)2/h9,15-18,22,25-26H,3-8,10-11H2,1-2H3/t15?,16?,17?,18?,19-,20+,21-/m0/s1