Ke, Shaoyong published the artcileSubstituted-nicotinyl thiourea derivatives bearing pyrimidine moiety: synthesis and biological evaluation, Safety of 2-Amino-4,6-dichloropyrimidine, the publication is Research on Chemical Intermediates (2011), 37(6), 627-633, database is CAplus.
Several substituted nicotinyl thiourea derivatives containing a pyrimidine ring were designed and the synthesis of the target compounds was achieved in good to excellent yield using PEG-400 as solid-liquid phase transfer catalyst under ultrasound irradiation conditions. The structures of the new compounds were confirmed by IR, 1H-NMR and elemental anal. The preliminary biol. tests show that some of the target compounds present good inhibitory activities against the root and stalk of Magnoliopsida (dicotyledon plants) and are safe for Liliopsida (monocotyledon plants).
Research on Chemical Intermediates published new progress about 56-05-3. 56-05-3 belongs to pyrimidines, auxiliary class Pyrimidine,Chloride,Amine,API, name is 2-Amino-4,6-dichloropyrimidine, and the molecular formula is C4H3Cl2N3, Safety of 2-Amino-4,6-dichloropyrimidine.
Referemce:
https://pubchem.ncbi.nlm.nih.gov/compound/Pyrimidine,
Pyrimidine – Wikipedia