InChI=1/C16H19N5O2S/c1-21(2)14-7-3-12(4-8-14)11-19-13-5-9-15(10-6-13)24(22,23)20-16(17)18/h3-11H,1-2H3,(H4,17,18,20)/f/h17-18H2 266C34B38038E83E