InChI=1/C15H20N4OS/c1-9-5-10(2)19(18-9)8-16-14-17-11-6-15(3,4)7-12(20)13(11)21-14/h5H,6-8H2,1-4H3,(H,16,17)/f/h16H 346BDC0E7507FD4F