InChI=1/C20H26N2O3/c1-15(10-11-17-8-5-13-25-17)22-19(23)21-14-20(24)12-4-7-16-6-2-3-9-18(16)20/h2-3,5-6,8-9,13,15,24H,4,7,10-12,14H2,1H3,(H2,21,22,23)/t15-,20-/m1/s1/f/h21-22H 76F769817A72A401