DIARYL KETIMINE DERIVATIVE HAVING ANTAGONISM AGAINST MELANIN-CONCENTRATING HORMONE RECEPTOR
申请人:Ando Makoto
公开号:US20100324049A1
公开(公告)日:2010-12-23
[Problems] To provide an antagonist of a melanin-concentrating hormone receptor, which is useful as a medicine for a central nervous system disease, a cardiovascular disease or a metabolic disease.
[Means for Solving Problems] The antagonist comprises, as an active ingredient, a compound represented by the formula (I)
wherein R
1a
and R
1b
independently represent a hydrogen atom or a C
1-6
alkyl group; R
2a
, R
2b
, R
3a
and R
3b
independently represent a hydrogen atom, a C
1-6
alkyl group, or the like; Y represents H or —OH; Z represents —OR
8
, or the like; R
8
represents a hydrogen atom, a C
1-6
alkyl group which may have a substituent, or the like; R
9a
and R
9b
independently represent a hydrogen atom, a C
1-6
alkyl group, or the like; Ar
1
represents an aromatic carbon ring group, or an aromatic heteroring group; Ar
2
represents a group produced by removing two hydrogen atoms from an aromatic carbon ring, or the like; and the ring group A represents an unsaturated heteroring group.
[EN] DIARYLAMIDE-SPIRODIAMINE DERIVATIVE<br/>[FR] DÉRIVÉ DE DIARYLAMIDE-SPIRODIAMINE
申请人:BANYU PHARMA CO LTD
公开号:WO2010147234A1
公开(公告)日:2010-12-23
To provide a melanin concentrating hormone receptor antagonist useful as medicines for central system disorders, cardiovascular disorders and metabolic disorders. Provided is a compound of a formula (I): wherein R1a and R1b each are a hydrogen atom, etc.; R2 is a hydrogen atom, a C1-6 alkyl, etc.; Ar1 is a 6-membered aromatic carbocyclic group or a 6-membered aromatic nitrogen-containing heterocyclic group; Ar2 is a group to be formed by removing two hydrogen atoms from a 6-membered aromatic carbon ring, a 6-membered aromatic nitrogen-containing hetero ring, etc.; Ar3 is a mono- or bi-cyclic aromatic carbocyclic group or aromatic heterocyclic group; m1, m2, m3 and m4 are independently 0, 1, 2, 3 or 4, provided that the total of m1 and m2 is from 2 to 6, and the total of m3 and m4 is from 2 to 6. The compound is useful as medicines for central system disorders, cardiovascular disorders and metabolic disorders.
Synthesis of biaryl ketones by arylation of Weinreb amides with functionalized Grignard reagents under thermodynamic control <i>vs.</i> kinetic control of <i>N</i>,<i>N</i>-Boc<sub>2</sub>-amides
作者:Guangchen Li、Michal Szostak
DOI:10.1039/d0ob00813c
日期:——
A highlyefficient method for chemoselective synthesis of biaryl ketones by arylation of Weinreb amides (N-methoxy-N-methylamides) with functionalized Grignard reagents is reported. This protocol offers rapid entry to functionalized biaryl ketones after Mg/halide exchange with i-PrMgCl·LiCl under operationally-simple and practical reaction conditions. The scope of the method is highlighted in >40 examples
Disclosed herein are modulators of TRPV3 of formula (II):
wherein G
1
, X
1
, X
2
, X
3
, X
4
, X
5
, G
2
, R
a
, R
b
, and u are as defined in the specification. Compositions comprising such compounds and methods for treating conditions and disorders using such compounds and compositions are also presented.
Optimization of the lead 2a led to the identification of a novel diarylketoxime class of melanin-concentrating hormone 1 receptor (MCH-1R) antagonists. Our focus was directed toward improvement of hERG activity and metabolic stability. The representative derivative 4b showed potent and dose-dependent body weight reduction in diet-induced obese (DIO) C57BL/6J mice after oral administration. The synthesis