Résumé/Abstract A series of 2-methyl-3-amino-4 (H)-quinazolinone and of 2-phenyl-3- amino-4 (H)-quinazolinone derivatives were synthesized and examined for their CCK receptor affinities. These compounds displayed micromolar affinities for CCK-B rather than CCK-A receptor and the obtained results confirm that the 4 (3H)-quinazolinone nucleous represent a useful template for the development of selective CCK-B receptor ligands
