InChI=1/C15H16N2O5S/c1-4-17-14(20)9(13(19)16-15(17)23)5-8-6-10(21-2)12(18)11(7-8)22-3/h5-7,18H,4H2,1-3H3,(H,16,19,23)/p-1/b9-5-/fC15H15N2O5S/q-1 A03FD3A850FF929B