1 LD5 4-[(6-ethenyl-7~{H}-purin-2-yl)amino]benzenesulfonamide 1.000 2 LCB 4-[(6-ethyl-7~{H}-purin-2-yl)amino]benzenesulfonamide 1.000 3 LCQ 2-phenylazanyl-9~{H}-purine-6-carbonitrile 0.739