InChI=1S/C21H36O5/c1-7-12(2)17-20(5,15(23)8-9-22)16-13(3)10-19(4,25)11-14(16)18(24)21(17,6)26/h12-14,16-17,22,25-26H,7-11H2,1-6H3/t12-,13-,14+,16+,17-,19-,20-,21+/m1/s1