InChI=1S/C18H21N5O2S/c1-21-10-12-22(13-11-21)18(26)20-16-4-2-14(3-5-16)19-15-6-8-17(9-7-15)23(24)25/h2-9,19H,10-13H2,1H3,(H,20,26)