InChI=1S/C21H36O6/c1-6-21(5,12-8-11-15(4)10-7-9-14(2)3)27-20-19(25)18(24)17(23)16(13-22)26-20/h6,9,11,16-20,22-25H,1,7-8,10,12-13H2,2-5H3/t16-,17-,18+,19+,20+,21+/m0/s1