InChI=1/C18H23N3O3/c1-21(2)17-8-7-15(10-19-17)11-20-18(22)13-24-12-14-5-4-6-16(9-14)23-3/h4-10H,11-13H2,1-3H3,(H,20,22)/f/h20H 6B016CE39B315D0D