InChI=1S/C22H28O3/c1-16(2)7-5-8-17(3)9-6-13-22(4)14-12-18-15-19(21(23)24)10-11-20(18)25-22/h7,9-12,14-15H,5-6,8,13H2,1-4H3,(H,23,24)/b17-9+