The Base-Promoted Annulation of 2-Hydrazinyl Pyridine and CO<sub>2</sub>
toward Triazolones
作者:Xiaopeng Wu、Song Sun、Bingbing Wang、Jiang Cheng
DOI:10.1002/adsc.201700869
日期:2017.11.10
A base‐promoted annulation of 2‐hydrazinyl pyridine and atmospheric pressure of CO2 has been developed in the presence of silane as reducing reagent, affording a series of triazolones in moderate to excellent yields. CO2 served as a carbonyl source in this transfomation. Moreover, benzamidrazones also worked well under this procedure. Thus, it represents a green, sustainable and straightforward pathway
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.
4‐diheteroaryl‐1,2‐dihydro‐3H‐pyrazol‐3‐ones as orally bioavailable HIF‐PH inhibitors for the treatment of anemia. High‐throughput screening of our corporate compound library identified BAY‐908 as a promising hit. The lead optimization program then resulted in the identification of molidustat (BAY 85‐3934), a novel small‐molecule oral HIF‐PH inhibitor. Molidustat is currently being investigated in clinical phase III
DIHYDROINDAZOLE COMPOUNDS USEFUL IN TREATING IRON DISORDERS
申请人:Cadieux Jean-Jacques
公开号:US20080234327A1
公开(公告)日:2008-09-25
This invention is directed to compounds of formula (I):
wherein
m, R
1
, R
2
, R
3
and R
4
are as defined herein, as a stereoisomer, enantiomer, tautomer thereof or mixtures thereof; or a pharmaceutically acceptable salt, solvate or prodrug thereof, for the treatment of iron disorders. This invention is also directed to pharmaceutical compositions comprising the compounds and methods of using the compounds to treat iron disorders.
Trifluoromethyl-substituted dehydrodiazepines and cyanopyrroles from azido-/tetrazolo-pyridines
作者:Richard A. Evans、Curt Wentrup
DOI:10.1039/c39920001062
日期:——
1,2-Didehydro-1,3-diazepines 4D, 5D, 4,6D and 5,6D are identified as unique products of both photolysis and thermolysis of azido-/tetrazolo-pyridines; the ultimate thermolysis products are trifluoromethylpyrrolecarbonitriles (7–9, 11–13 and 16–18).