| 3-((6-((ethoxyoxoacetyl)amino)-4-pyrimidinyl)thio)-propanoic aci ethyl este |
| 4-carbethoxy-carbonilamino-6-(gamma-carbethoxypropylthio)-pyrimidine |
| ethyl 3-((6-((ethoxyoxoacetyl)amino)-4-pyrimidinyl)thio)propanoate |
| 3-((6-((ethoxyoxoacetyl)amino)-4-pyrimidinyl)thio)-propanoic aci ethyl ester |
