c1ccc(CNc2ncnc3ccccc23)cc1 SM07 0_1 c1ccc(CNc2[nH+]cnc3ccccc23)cc1 SM07 1_1 c1ccc(CNc2nc[nH+]c3ccccc23)cc1 SM07 1_2 c1ccc(C[NH2+]c2ncnc3ccccc23)cc1 SM07 1_3