Background:

N-?Carbamoyl-?DL-?aspartic acid (Ureidosuccinic acid) is a precursor of nucleic acid pyrimidines[1].

参考文献:
[1]. ANDERSON EP, et al. Ureidosuccinic acid as a precursor of nucleic acid pyrimidines in normal and tumor-bearing mice. J Biol Chem. 1955 Apr;213(2):625-33.