Kobayashi, Shigeru published the artcileSynthesis of pyrimidines and condensed pyrimidines, COA of Formula: C6H9N3, the publication is Bulletin of the Chemical Society of Japan (1973), 46(9), 2835-9, database is CAplus.
A new one-step synthesis of pyrimidines, e.g. I (R = alkyl) and condensed pyrimidines, e.g., II (n = 2-4) by heating carboxamides or cyclic lactams with formamide in the presence of POCl3 in a sealed tube is described.
Bulletin of the Chemical Society of Japan published new progress about 31401-45-3. 31401-45-3 belongs to pyrimidines, auxiliary class Pyrimidine,Amine, name is N,N-Dimethylpyrimidin-4-amine, and the molecular formula is C6H9N3, COA of Formula: C6H9N3.
Referemce:
https://pubchem.ncbi.nlm.nih.gov/compound/Pyrimidine,
Pyrimidine – Wikipedia