PYRAZOLE DERIVATIVE, OR PHARMACEUTICALLY ACCEPTABLE SALT THEREOF
申请人:Kissei Pharmaceutical Co., Ltd.
公开号:EP3315492A1
公开(公告)日:2018-05-02
[Problem]
The present invention is to provide a novel pyrazole derivative, or a pharmaceutically acceptable salt thereof, a pharmaceutical composition comprising the same, and a pharmaceutical use thereof.
[Solution]
The present invention provides a compound represented by the formula (I) or a pharmaceutically acceptable salt thereof, which has TRPM8 inhibitory effects:
wherein ring A is C6-10 aryl or the like; X is CR4a or the like; R1 and R2 are a hydrogen atom or the like; R3 is a hydrogen atom or the like; R4 is a hydrogen atom or the like; ring B is C6-10 aryl or the like; R5 is a hydrogen atom or the like; R6a is a hydrogen atom or the like; R7a is a hydrogen atom or the like; R7b is a hydrogen atom or the like; R6b is a hydrogen atom or the like; R8 is a hydrogen atom or the like; n is 0, 1 or 2. Therefore, the compound represented by the formula (I) of the present invention or a pharmaceutically acceptable salt thereof is useful as an agent for treating or preventing diseases or symptoms caused by hyperexcitability or disorder of afferent neurons.
Electroorganic Synthesis of 2,5-Dialkoxydihydrofurans and Pyridazines on Solid Phase Using Polymer Beads as Supports
作者:Rolf Breinbauer、Sukanya Nad
DOI:10.1055/s-2005-918493
日期:——
by the use of a redox mediator which shuttles electrons from the electrode to the polymer bound substrate molecules. This approach of indirect electroorganic synthesis was successfully applied for the 2,5-dialkoxylation of furans on solidphase. The oxidation products can be hydroly/ed and through condensation with hydrazine hydrate substituted pyridazines are produced in 50-65% overall yield.
structure‐activity relationships among histamine H3‐receptor antagonists the imidazole ring of known H3‐receptor antagonists was replaced by different heteroaromatic ring systems. Thus, azines and diazines with ether (6–13) and carbamate (15–24) moieties as functional groups were synthesized. The obtained compounds did not show significant H3‐receptor antagonist activity in vitro (rat brain cortex) or