36746-06-2Relevant articles and documents
Synthesis and biological evaluation of 5-carbamoyl-2-phenylpyrimidine derivatives as novel and potent PDE4 inhibitors
Goto, Taiji,Shiina, Akiko,Yoshino, Toshiharu,Mizukami, Kiyoshi,Hirahara, Kazuki,Suzuki, Osamu,Sogawa, Yoshitaka,Takahashi, Tomoko,Mikkaichi, Tsuyoshi,Nakao, Naoki,Takahashi, Mizuki,Hasegawa, Masashi,Sasaki, Shigeki
, p. 7025 - 7037 (2013)
5-Carbamoyl-2-phenylpyrimidine derivative 2 has been identified as a phosphodiesterase 4 (PDE4) inhibitor with moderate PDE4B inhibitory activity (IC50 = 200 nM). Modification of the carboxylic acid moiety of 2 gave N-neopentylacetamide derivative 10f, which had high in vitro PDE4B inhibitory activity (IC50 = 8.3 nM) and in vivo efficacy against lipopolysaccharide (LPS)-induced pulmonary neutrophilia in mice (ID50 = 16 mg/kg, ip). Furthermore, based on the X-ray crystallography of 10f bound to the human PDE4B catalytic domain, we designed 7,8-dihydro-6H-pyrido[4,3-d] pyrimidin-5-one derivative 39 which has a fused bicyclic lactam scaffold. Compound 39 exhibited excellent inhibitory activity against LPS-induced tumor necrosis factor alpha (TNF-α) production in mouse splenocytes (IC 50 = 0.21 nM) and in vivo anti-inflammatory activity against LPS-induced pulmonary neutrophilia in mice (41% inhibition at a dose of 1.0 mg/kg, i.t.).
Some reactions with ethyl 4-(mercapto/ chloro)-6-methyl-2-phenylpyrimidine-5-carboxylate
Assy,El-Bahaie,Ibrahim,Ibrahim
, p. 598 - 601 (2007/10/03)
Michael adducts (2a,b), transesters, 4a,b and/or chloropyrimidine (5) have been synthesized from 4-mercaptopyrimidine (1). Compound 5 on reaction with ethyl glycinate, arylamines, 2-aminopyridine, ammonium acetate, acid hydrazide, hydrazine, and/or benzilmonohydrazone gives pyrrolopyrimidine (8), 4-arylaminopyrimidines (9a,b), pyridylaminopyrimidine (11), 4-aminopyrimidine (13), 4-aroylhydrazinopyrimidine (15a,b), 1,2-bis(substituted phenylpyrimidine-4-yl)hydrazine (19) and/or pyrimidopyridazine (20), respectively. ? Present address: Chemistry Department, Faculty of Science, Cairo University, AR Egypt.