InChI=1S/C21H30O5/c1-5-6-7-8-14-10-15(22)18-16(11-14)26-19(3,4)21(25)17(23)9-13(2)12-20(18,21)24/h10-12,17,22-25H,5-9H2,1-4H3/t17-,20+,21+/m1/s1