InChI=1S/C20H24O3/c1-3-20(23)9-7-16-18-15(6-8-19(16,20)2)14-5-4-13(21)10-12(14)11-17(18)22/h1,4-5,10,15-18,21-23H,6-9,11H2,2H3/t15-,16+,17?,18-,19+,20+/m1/s1