Original 2-(3-Alkoxy-1H-pyrazol-1-yl)pyrimidine Derivatives as Inhibitors of Human Dihydroorotate Dehydrogenase (DHODH)
摘要:
From a research program aimed at the design of new chemical entities followed by extensive screening on various models of infectious diseases, an original series of 2-(3-alkoxy-1H-pyrazol-1-yl)pyrimidines endowed with notable antiviral properties were found. Using a whole cell measles virus replication assay, we describe here some aspects of the iterative process that, from 2-(4-benzyl-3-ethoxy-5-methyl-1H-pyrazol-1-yl)pyrimidine, led to 2-(4-(2,6-difluorophenoxy)-3-isopropoxy-5-methyl-1H-pyrazol-1-yl)-5-ethylpyrimidine and a 4000-fold improvement of antiviral activity with a subnanomolar level of inhibition. Moreover, recent precedents in the literature describing antiviral derivatives acting at the level of the de novo pyrimidine biosynthetic pathway led us to determine that the mode of action of this series is based on the inhibition of the cellular dihydroorotate dehydrogenase (DHODH), the fourth enzyme of this pathway. Biochemical studies with recombinant human DHODH led us to measure IC50 as low as 13 nM for the best example of this original series when using 2,3-dimethoxy-5-methyl-6-(3-methyl-2-butenyl)-1,4-benzoquinone (coenzyme Q(1)) as a surrogate for coenzyme Q(10), the cofactor of this enzyme.
New One-Pot Synthesis of Polysubstituted Benzofurans and Benzo-1,4-dioxines
摘要:
It has been revealed that the copper(II) triflate catalyzed reaction of ethyl-2-diazo-3-oxobutanoate with phenols followed by cyclization of the intermediate enol in the presence of polyphosphoric acid is a simple and efficient method of synthesis of polysubstituted benzofurans. The use of pyrocatechol leads to the corresponding substituted 1,4-benzodioxine-2-carboxylates as major products.
Pyrazole derivatives as dihydroorotate dehydrogenase (DHODH) inhibitors
申请人:INSTITUT PASTEUR
公开号:EP2929883A1
公开(公告)日:2015-10-14
The present invention relates to compounds of formula (I) for their use in the treatment and/or prevention of auto-immune or auto-immune related diseases, cancer, viral infections, and central nervous system diseases and disorders, by inhibiting human dehydroorate dehydrogenase (DHODH):
Wherein R1, R2, R3, R4 and Ar are as defined in claim 1.
本发明涉及式(I)化合物,通过抑制人脱氢脱氢酶(DHODH),用于治疗和/或预防自身免疫或自身免疫相关疾病、癌症、病毒感染以及中枢神经系统疾病和失调:
其中 R1、R2、R3、R4 和 Ar 如权利要求 1 所定义。
WO2015/155680
申请人:——
公开号:——
公开(公告)日:——
Rathnam; Thatte, Chittaranjan S.; Pise, Abhinay C., Asian Journal of Chemistry, 2010, vol. 22, # 8, p. 6092 - 6098
作者:Rathnam、Thatte, Chittaranjan S.、Pise, Abhinay C.