InChI=1/C20H19N3O3S/c1-12(2)18(27-20-22-14-8-4-6-10-16(14)26-20)19(25)23-11-17(24)21-13-7-3-5-9-15(13)23/h3-10,12,18H,11H2,1-2H3,(H,21,24)/t18-/m1/s1/f/h21H 5F154F8CA5B0F53A