InChI=1/C19H23FN4O4/c1-11-5-7-19(8-6-11)17(27)24(18(28)23-19)10-15(25)22-12-3-4-14(20)13(9-12)16(26)21-2/h3-4,9,11H,5-8,10H2,1-2H3,(H,21,26)(H,22,25)(H,23,28)/f/h21-23H B2CC169C7FC36ABB