InChI=1/C20H23FN2O2/c1-22(2)19(15-8-4-3-5-9-15)20(24)23-12-13-25-18(14-23)16-10-6-7-11-17(16)21/h3-11,18-19H,12-14H2,1-2H3/t18-,19-/m0/s1 E8C57F4B6AD05689