InChI=1/C18H23N3O3/c1-12-9-19-16(13(2)17(12)24-4)10-20-18(23)21(3)11-14-6-5-7-15(22)8-14/h5-9,22H,10-11H2,1-4H3,(H,20,23)/f/h20H 37C034949F0F4F73