1013029-29-2Relevant articles and documents
Enantiomeric 4-Acylamino-6-alkyloxy-2 Alkylthiopyrimidines As Potential A3Adenosine Receptor Antagonists: HPLC Chiral Resolution and Absolute Configuration Assignment by a Full Set of Chiroptical Spectroscopy
Rossi, Daniela,Nasti, Rita,Marra, Annamaria,Meneghini, Silvia,Mazzeo, Giuseppe,Longhi, Giovanna,Memo, Maurizio,Cosimelli, Barbara,Greco, Giovanni,Novellino, Ettore,Da Settimo, Federico,Martini, Claudia,Taliani, Sabrina,Abbate, Sergio,Collina, Simona
, p. 434 - 440 (2016)
The chiral separation of enantiomeric couples of three potential A3adenosine receptor antagonists: (R/S)-N-(6-(1-phenylethoxy)-2-(propylthio)pyrimidin-4-yl)acetamide (1), (R/S)-N-(2-(1-phenylethylthio)-6-propoxypyrimidin-4-yl)acetamide (2), and
Derivatives of 4-amino-6-hydroxy-2-mercaptopyrimidine as novel, potent, and selective A3 adenosine receptor antagonists
Cosimelli, Barbara,Greco, Giovanni,Ehlardo, Marina,Novellino, Ettore,Da Settimo, Federico,Taliani, Sabrina,La Motta, Concettina,Bellandi, Marusca,Tuccinardi, Tiziano,Martinelli, Adriano,Ciampi, Osele,Trincavelli, Maria Letizia,Martini, Claudia
, p. 1764 - 1770 (2008/12/22)
A number of derivatives of 4-amino-6-hydroxy-2-mercaptopyrimidine (5) were synthesized and biologically evaluated as A3 adenosine receptor (A3 AR) antagonists. The new compounds were designed as open chain analogues of a triazolopyrimidinone derivative displaying submicromolar affinity for the A3 AR, which had been previously identified using a 3D database search. Substituents R, R′, and R″ attached to the parent compound 5 were chosen according to factorial design and stepwise lead optimization approaches, taking into account the essentially hydrophobic nature of the A3 AR binding site. As a result, 5m (R = n-C3H 7, R′ = 4-ClC6H4CH2, R″ = CH3) was identified among the pyrimidine derivatives as the ligand featuring the best combination of potency and selectivity for the target receptor. This compound binds to the A3 AR with a Ki of 3.5 nM and is devoid of appreciable affinity for the A1, A 2A, and A2B ARs.