第一种底物样,可逆抑制剂,具有不同的铜胺氧化酶(CAO),IC50(M)低至2.0 x 10(-8),对应于4-氨基甲基吡啶与烷氧基(1a-d),烷硫基(2a,b)的衍生物已经制备并研究了在3和5位的烷基氨基(3a-e,4a-j)基团。抑制剂1a-d对苄胺氧化酶和氨基脲敏感的胺氧化酶具有活性,并且对二胺氧化酶,赖氨酰氧化酶和单胺氧化酶具有很高的选择性。抑制剂2a,b对苄胺氧化酶具有选择性,而抑制剂2a也是新型的二胺氧化酶的良好底物。抑制剂3a-e和4a-j是各种CAO的底物状,可逆的非选择性抑制剂,包括豌豆幼苗胺氧化酶和汉逊酵母多形胺氧化酶,从X射线结构测定中可以知道其酶促位点。抑制剂3b,c和4b,c是用于研究将提供适合X射线结构测定的晶体的CAO与来自哺乳动物的CAO相关联的出色的类似基质的工具。
The key reagent 3,5-dichloro-4-pyridinecarbonitrile (1) was used to synthesize 4-aminomethylpyridine derivatives 3,5-disubstituted with various amino groups, very active as inhibitors of diamine oxidase. The study of the reaction allowed to discover conditions for the gradual substitution in good yields of the two chlorine atoms to give symmetrically and unsymmetrically disubstituted derivatives (3), or the substitution of the cyano group, or the formation of amidines. The reduction of the cyano to aminomethyl group in compounds (3) afforded the target bioactive products.
Aminopyrimidine derivatives, processes for their preparation, compositions containing them and their use as pharmaceuticals
申请人:AstraZeneca AB
公开号:US06303613B1
公开(公告)日:2001-10-16
There are provided novel compounds of formula (I)
wherein:
A represents a five membered heterocyclic aromatic ring containing 1 to 3 heteroatoms which may be the same or different and are selected from O, N and S; or a six membered heterocyclic aromatic ring containing 1 to 3 nitrogen atoms; and R1, R2, R3 and R4 are as defined in the Specification and pharmaceutically acceptable salts thereof and enantiomers and tautomers thereof; together with processes for their preparation, compositions containing them and their use in therapy. The compounds are inhibitors of nitric oxide synthase and are thereby particularly useful in the treatment or prophylaxis of inflammatory disease and pain.
Exploration of Pyrido[3,4-d]pyrimidines as Antagonists of the Human Chemokine Receptor CXCR2
作者:Max Van Hoof、Sandra Claes、Katrijn Boon、Tom Van Loy、Dominique Schols、Wim Dehaen、Steven De Jonghe
DOI:10.3390/molecules28052099
日期:——
previously identified, via scaffold hopping, a pyrido[3,4-d]pyrimidine analogue as a promising CXCR2 antagonist with an IC50 value of 0.11 µM in a kinetic fluorescence-based calcium mobilization assay. This study aims at exploring the structure-activity relationship (SAR) and improving the CXCR2 antagonistic potency of this pyrido[3,4-d]pyrimidine via systematic structural modifications of the substitution
(EN) There are provided novel compounds of formula (I) wherein A represents a five membered heterocyclic aromatic ring containing 1 to 3 hereroatoms which may be the same or different and are selected from O, N and S; or a six membered heterocyclic aromatic ring containing 1 to 3 nitrogen atoms; and R1, R2, R3 and R4 are as defined in the Specification and pharmaceutically acceptable salts thereof and enantiomers and tautomers thereof; together with processes for their preparation, compositions containing them and their use in therapy. The compounds are inhibitors of nitric oxide synthase and are thereby particularly useful in the treatment or prophylaxis of inflammatory disease and pain.(FR) La présente invention concerne de nouveaux composés de la formule (I) dans laquelle A représente un composé aromatique hétérocyclique à cinq chaînons contenant 1 à 3 hétéroatomes qui peuvent être identiques ou différents et sont sélectionnés dans O, N et S; ou un composé aromatique hétérocyclique à six chaînons contenant 1 à 3 atomes d'azote; et R1, R2, R3 et R4 sont définis dans la description. La présente invention concerne également des sels pharmaceutiquement acceptables, des énantiomères et des tautomères de ces composés. La présente invention concerne également le procédé de préparation de ces composés, les compositions les contenant et leur utilisation à des fins de thérapie. Ces composés sont des inhibiteurs de synthase d'oxyde nitrique et conviennent particulièrement au traitement ou à la prophylaxie de maladies ou de douleurs inflammatoires.