InChI=1S/C21H32O5/c1-13(12-22)5-4-6-14(2)16-9-10-20(3)21(16,25)11-15-18(26-20)8-7-17(23)19(15)24/h9,13-14,17,22-23,25H,4-8,10-12H2,1-3H3/t13?,14?,17-,20-,21-/m0/s1