InChI=1/C21H21N3O3/c1-13-7-9-14(10-8-13)20-17-18(15-5-2-3-6-16(15)26)22-23-19(17)21(27)24(20)11-4-12-25/h2-3,5-10,20,25-26H,4,11-12H2,1H3,(H,22,23)/t20-/m1/s1/f/h23H 6354CD82535C7C22