InChI=1/C20H23FN2O2/c1-15(25-18-10-8-17(21)9-11-18)20(24)23-13-12-22(2)14-19(23)16-6-4-3-5-7-16/h3-11,15,19H,12-14H2,1-2H3/t15-,19+/m0/s1 44FD282C5F46A4FA