InChI=1/C21H23N3O/c1-15-4-8-17(9-5-15)18-10-6-16(7-11-18)13-20(23)21(25)24-12-2-3-19(24)14-22/h4-11,19-20H,2-3,12-13,23H2,1H3/t19-,20-/m0/s1 66441214B5CCCA97