InChI=1S/C19H28O5/c20-14(7-6-13-4-2-1-3-5-13)8-9-15-16(10-11-19(23)24)18(22)12-17(15)21/h1-5,14-18,20-22H,6-12H2,(H,23,24)/t14-,15+,16+,17+,18-/m0/s1