InChI=1/C18H21FN4O5/c1-28-17(27)21-13-9-11(5-6-12(13)19)20-14(24)10-23-15(25)18(22-16(23)26)7-3-2-4-8-18/h5-6,9H,2-4,7-8,10H2,1H3,(H,20,24)(H,21,27)(H,22,26)/f/h20-22H 60B38D05E1E8E82A