InChI=1S/C19H21ClFN3O4S/c1-11-14(21)5-2-6-15(11)23-19(26)24-16-8-7-13(20)18(17(16)25)29(27,28)12-4-3-9-22-10-12/h2,5-8,12,22,25H,3-4,9-10H2,1H3,(H2,23,24,26)/t12-/m0/s1