6533b7d5fe1ef96bd1263b05

RESEARCH PRODUCT

Reaction of 4,5-diamino-1,6-dihydropyrimidin-6-ones with two equivalents of chalcones

Adolfo SánchezNorbert HanoldJairo QuirogaHerbert MeierRodolfo MorenoManuel NoguerasBraulio InsuastyMonica Ramos

subject

DiffractionEquivalentChemistryOrganic ChemistryMedicinal chemistry

description

The reaction of 4,5-diamino-1,6-dihydropyrimidin-6-ones 1 with two equivalents of the chalcones 2 leads in an acidic medium to the formation of the 2,3,6,7-tetrahydro-1H-pyrimido[4,5-b][1,4]diazepin-6-one derivatives 3a-d. The structure elucidation of the products is based on nmr measurements and an X-ray diffraction.

https://doi.org/10.1002/jhet.5570320423