InChI=1/C15H20N4OS/c20-12(16-13-17-18-14-19(13)1-2-21-14)15-6-9-3-10(7-15)5-11(4-9)8-15/h9-11H,1-8H2,(H,16,17,20)/f/h16H EF563CE383CA7B3E