InChI=1/C19H25ClN4O4/c1-5-9-23(10-6-2)17(13(3)4)12-21-18(25)19(26)22-14-7-8-15(20)16(11-14)24(27)28/h5-8,11,13,17H,1-2,9-10,12H2,3-4H3,(H,21,25)(H,22,26)/p+1/t17-/m0/s1/fC19H26ClN4O4/h21-23H/q+1 338E11D6E12D5F57