InChI=1/C14H15N3O3S/c1-19-10-5-3-4-8(12(10)20-2)13-9-6-15-17-14(9)16-11(18)7-21-13/h3-6,13H,7H2,1-2H3,(H2,15,16,17,18)/t13-/m0/s1/f/h15,18H 938BED5B683E62F3