InChI=1/C19H21N3O2S/c1-22(2,24)25-14-7-8-18-15(11-14)16(19(23)21-18)10-13-9-12-5-3-4-6-17(12)20-13/h7-11,20H,3-6H2,1-2H3,(H,21,23)/b16-10-/f/h21H 0016151E4B0C4BA5