InChI=1S/C21H21ClFN7O4/c1-21(2,3)20-29-28-18(34-20)15-13(31)14(32)19(33-15)30-8-26-12-16(24-7-25-17(12)30)27-11-5-4-9(22)6-10(11)23/h4-8,13-15,19,31-32H,1-3H3,(H,24,25,27)/t13-,14+,15-,19+/m0/s1