InChI=1/C19H21N3O4/c23-16(13-6-2-1-3-7-13)12-20-17(24)10-11-22-15-9-5-4-8-14(15)18(25)21-19(22)26/h1-3,6-7H,4-5,8-12H2,(H,20,24)(H,21,25,26)/f/h20-21H 711AFF2BBA4FB412