The present invention relates to a process for preparing 1-[6-(morpholin-4-yl)pyrimidin-4-yl]-4-(1H-1,2,3-triazol-1-yl)-1H-pyrazol-5-ol (I—enol form) or 2-[6-(morpholin-4-yl)pyrimidin-4-yl]-4-(1H-1,2,3-triazol-1-yl)-1,2-dihydro-3H-pyrazol-3-one (I—keto form) and sodium 1-[6-(morpholin-4-yl)pyrimidin-4-yl]-4-(1H-1,2,3-triazol-1-yl)-1H-pyrazol-5-olate (II) from 1,2,3-triazole (III), methyl bromoacetate (IV-Me-Br) or ethyl bromoacetate (IV-Et-Br), 4,6-dichloropyrimidine (VIII), morpholine (IX) and hydrazine (XII).
SUBSTITUTED DIHYDROPYRAZOLONES FOR TREATING CARDIOVASCULAR AND HEMATOLOGICAL DISEASES
申请人:Thede Kai
公开号:US20100305085A1
公开(公告)日:2010-12-02
The invention relates to dihydropyrazolon-derivatives of formula (I), to methods for their production, to their use for treating and/or for preventing diseases and their use for producing medicaments for treating and/or for preventing diseases, in particular cardiovascular and haematological diseases, kidney diseases and for promoting the healing of wounds.
Potent and Selective Triazole-Based Inhibitors of the Hypoxia-Inducible Factor Prolyl-Hydroxylases with Activity in the Murine Brain
作者:Mun Chiang Chan、Onur Atasoylu、Emma Hodson、Anthony Tumber、Ivanhoe K. H. Leung、Rasheduzzaman Chowdhury、Verónica Gómez-Pérez、Marina Demetriades、Anna M. Rydzik、James Holt-Martyn、Ya-Min Tian、Tammie Bishop、Timothy D. W. Claridge、Akane Kawamura、Christopher W. Pugh、Peter J. Ratcliffe、Christopher J. Schofield
DOI:10.1371/journal.pone.0132004
日期:——
As part of the cellular adaptation to limiting oxygen availability in animals, the expression of a large set of genes is activated by the upregulation of the hypoxia-inducible transcription factors (HIFs). Therapeutic activation of the natural human hypoxic response can be achieved by the inhibition of the hypoxia sensors for the HIF system, i.e. the HIF prolyl-hydroxylases (PHDs). Here, we report studies on tricyclic triazole-containing compounds as potent and selective PHD inhibitors which compete with the 2-oxoglutarate co-substrate. One compound (IOX4) induces HIFα in cells and in wildtype mice with marked induction in the brain tissue, revealing that it is useful for studies aimed at validating the upregulation of HIF for treatment of cerebral diseases including stroke.