InChI=1/C20H21N3O4S/c1-14(2)13-27-18-10-6-16(7-11-18)21-20(28)22-19(24)12-5-15-3-8-17(9-4-15)23(25)26/h3-12,14H,13H2,1-2H3,(H2,21,22,24,28)/b12-5+/f/h21-22H FD787B71B8AC760F