Studies on 2-oxoquinoline derivatives as blood platelet aggregation inhibitors. IV. Synthesis and biological activity of the metabolites of 6-(4-(1-cyclohexyl-1H-5-tetrazolyl)butoxy)-2-oxo-1,2,3,4-tetrahydroquinoline(OPC-13013).
The metabolites of 6-[4-(1-cyclohexyl-1H-5-tetrazolyl) butoxy]-2-oxo-1, 2, 3, 4-tetrahydroquinoline (OPC-13013) (1), which has a potent inhibitory activity toward blood platelet aggregation and a cerebral vasodilating activity, were synthesized to confirm their structures and to examine their inhibitory activity. The structures of four major metabolites (2a-c and 3) and a specific metabolite (4) found only in man were identified unequivocally by means of comparisons with the synthetic compounds. The inhibitory activity of 3, 4-dehydro-OPC-13013 (3) was about three times higher than that of 1, whereas two metabolites (2a and 2c) had activity almost equal to that of 1.
[EN] TROPOMYOSIN-RELATED KINASE INHIBITORS CONTAINING BOTH A 1H-PYRAZOLE AND A PYRIMIDINE MOIETY<br/>[FR] INHIBITEURS DE KINASES APPARENTÉES À LA TROPOMYOSINE CONTENANT À LA FOIS UN 1H-PYRAZOLE ET UN FRAGMENT PYRIMIDINE
申请人:PFIZER
公开号:WO2015159175A1
公开(公告)日:2015-10-22
The present invention relates to compounds of Formula (I) and their prodrugs and pharmaceutically acceptable salts, wherein the substituents are as described herein, and their use in medicine, in particular as TrkA antagonists.
[EN] TROPOMYOSIN-RELATED KINASE INHIBITORS<br/>[FR] INHIBITEURS DE KINASES APPARENTÉES À LA TROPOMYOSINE
申请人:PFIZER
公开号:WO2015170218A1
公开(公告)日:2015-11-12
The present invention relates to compounds of Formula I and their pharmaceutically acceptable salts, wherein the substituents are as described herein, and their use in medicine, in particular as TrkA antagonists.
Ruthenium-supported catalysts for the stereoselective hydrogenation of paracetamol to 4--acetamidocyclohexanol: effect of support, metal precursor, and solvent
respectively). Carbon-supported catalysts produced larger amounts of secondary compounds, mainly N-cyclohexylacetamide, which was derivedfrom the hydrogenolysis reaction of the OH group. The use of a chloride precursor resulted in the enhancement of the formation of N-cyclohexylacetamide and partially hydrogenated products; the stereoselectivity also increased. Moreover, because of the acidity caused by
在负载型钌催化剂上研究了载体,金属前体和溶剂对对乙酰氨基酚(4-乙酰氨基苯酚)选择性加氢的影响。在活性,对乙酰氨基环己醇的选择性(99%)和对反式的立体选择性方面,负载在氧化载体Al 2 O 3和SiO 2上的催化剂给出了最佳结果。异构体(分别为53%和46%)。碳负载的催化剂产生大量的次级化合物,主要是N-环己基乙酰胺,它是从OH基团的氢解反应衍生而来的。氯化物前体的使用导致N-环己基乙酰胺和部分氢化产物的形成增加。立体选择性也增加了。而且,由于残留的Cl引起的酸性,缩合导致对乙酰氨基酚的低聚物。尽管当使用极性更大的溶剂乙醇代替异丙醇或四氢呋喃时,环己醇衍生物的选择性降低,但反式异构体的立体选择性却从30%增至38%。
Compounds of formula (I): H.sub.2 N--(CH.sub.2).sub.n --A--(CH.sub.2).sub.m --O--NH.sub.2 and salts thereof are described in which the radical A is C.sub.3 -C.sub.6 cycloalkylene; n is 0 or 1 and, independently thereof, m is 0 or 1; with the provisos that a) the distance between the aminooxy radical H.sub.2 N--O-- and the amino group --NH.sub.2 is at least 3 and not more than 4 carbon atoms and that b) the two radicals H.sub.2 N--(CH.sub.2).sub.n -- and --(CH.sub.2).sub.m --O--NH.sub.2 are not bonded to the same ring carbon of A. The compounds of formula (I) and their salts are ornithine decarboxylase inhibitors.