InChI=1S/C19H21N3O3/c1-13(23)18(22-11-17(19(20)24)21-12-22)8-9-25-16-7-6-14-4-2-3-5-15(14)10-16/h2-7,10-13,18,23H,8-9H2,1H3,(H2,20,24)/t13-,18+/m0/s1