外周选择性μ阿片受体(MOR)拮抗剂可以减轻阿片类药物引起的便秘(OIC)的症状,而不会影响阿片类药物的镇痛作用。然而,与它们相关的各种不利影响,部分是由于它们相对较低的 MOR 选择性。NAP 是一种6β- N -4'-吡啶基取代的纳曲胺衍生物,以前被鉴定为主要作用于外周神经系统的有效且高度选择性的 MOR 拮抗剂。与之相关的明显腹泻促使设计和合成其类似物以研究其结构-活性关系。其中,化合物8与原始铅相比,显示出改善的药理学特征,主要作用于外周,同时增加吗啡颗粒小鼠的肠蠕动(ED 50 = 0.03 mg/kg)。与原始铅相比,ED 50的轻微下降被未观察到的不利影响很好地补偿了。因此,该化合物似乎是开发针对 OIC 的新型治疗剂的更有希望的线索。
[EN] 1H-PYRAZOLO[4,3-B]PYRIDINES AS PDE1 INHIBITORS<br/>[FR] 1H-PYRAZOLO [4,3-B] PYRIDINES EN TANT QU'INHIBITEURS DE PDE1
申请人:H LUNDBECK AS
公开号:WO2018007249A1
公开(公告)日:2018-01-11
The present invention provides 1H-pyrazolo[4,3-b]pyridin-7-amines of formula (I) as PDE1 inhibitors and their use as a medicament, in particular for the treatment of neurodegenerative disorders and psychiatric disorders.
The present invention provides 1H-pyrazolo[4,3-b]pyridines of formula (I) as PDE1 inhibitors and their use as a medicament, in particular for the treatment of neurodegenerative disorders and psychiatric disorders.
Metal-free electrochemical [3 + 2] heteroannulation of anilines with pyridines enabled by dual C–H radical aminations
作者:Mu-Jia Luo、Xuan-Hui Ouyang、Yan-Ping Zhu、Yang Li、Jin-Heng Li
DOI:10.1039/d1gc02922c
日期:——
electrochemical intermolecular [3 + 2] heteroannulation of anilines with electron-deficient pyridines enabled by dual C–H radicalaminations for producing functionally diverse benzo[4,5]imidazo[1,2-a]pyridines is described. The site-selectivity of aminations of aryl C(sp2)–H bonds relies on the electronic effect of two reaction partners: each contributed two reactive sites (a C(sp2)–H bond and a nitrogen
[EN] COMBINATION TREATMENTS COMPRISING ADMINISTRATION OF 1H-PYRAZOLO[4,3-B]PYRIDINES<br/>[FR] TRAITEMENTS COMBINÉS COMPRENANT L'ADMINISTRATION DE 1H-PYRAZOLO [4,3-B] PYRIDINES
申请人:H LUNDBECK AS
公开号:WO2019115567A1
公开(公告)日:2019-06-20
The present invention provides 1H-pyrazolo[4,3-b]pyridin-7-amines of formula (I) as PDE1 inhibitors together with a second compound useful in the treatment of a neurodegenerative disorder and their combined use as a medicament, in particular for the treatment of neurodegenerative and/or cognitive disorders.
6-heterocyclyl pyrazolo [3,4-d]pyrimidin-4-ones and compositions and
申请人:Sterling Winthrop Inc.
公开号:US05294612A1
公开(公告)日:1994-03-15
Novel 6-heterocyclyl-pyrazolo[3,4-d]pyrimidin-4-ones, useful in treating cardiovascular disease, are prepared by reacting a 5-amino-1H-pyrazole-4-carboxamide with heterocyclylcarboxaldehyde or by reacting a 5-amino-1H-pyrazole-4-carbonitrile with a heterocyclylcarboxamidine, followed by diazotization and hydrolysis of the resulting 4-amino-6-heterocyclyl-pyrazolo[3,4-d]pyrimidine.