1 40C N-[(4-amino-2-oxopyrimidin-1(2h)-yl)acetyl]-N-[(2s)-2-aminopropyl]glycine 1.000 2 CPN 2-aminoethylglycine-carbonylmethylene-cytosine 0.950 3 40T N-[(2s)-2-aminopropyl]-N-[(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2h)-yl)acetyl]glycine 0.864 4 CP1 2-(methylamino)-ethylglycine-carbonylmethylene-cytosine 0.818 5 IPN 2-aminoethylglycine-carbonylmethylene-5-iodouracil 0.818 6 TPN 2-aminoethylglycine-carbonylmethylene-thymine 0.818 7 C66 2-aminoethyllysine-carbonylmethylene-cytosine 0.760 8 40A N-[(2s)-2-aminopropyl]-N-[(6-amino-9h-purin-9-yl)acetyl]glycine 0.750 9 40G N-[(2-amino-6-oxo-1,6-dihydro-9h-purin-9-yl)acetyl]-N-[(2s)-2-aminopropyl]glycine 0.720 10 APN 2-aminoethylglycine-carbonylmethylene-adenine 0.708 11 TP1 2-(methylamino)-ethylglycine-carbonylmethylene-thymine 0.708