1	KBJ	5'-O-[(2-phenylethyl)carbamoyl]guanosine	1.000
2	HHJ	5'-O-{[2-(1h-indol-3-yl)ethyl]carbamoyl}guanosine	0.857
3	KB7	5'-O-(ethylcarbamoyl)guanosine	0.806
4	XKB	5'-O-[(3-indolyl)-1-ethyl]carbamoyl 2-aminoethenoadenosine	0.763
5	X7I	[(2~{R},3~{S},4~{R},5~{R})-5-imidazo[2,1-f]purin-3-yl-3,4-bis(oxidanyl)oxolan-2-yl]methyl ~{N}-[2-(1~{H}-indol-3-yl)ethyl]carbamate	0.737
6	XKF	5'-O-[(3-indolyl)-1-ethyl]carbamoyl n2-methyl-2-aminoethenoadenosine	0.700