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.
The Merger of Aryl Radical-Mediated Halogen-Atom Transfer (XAT) and Copper Catalysis for the Modular Cross-Coupling-Type Functionalization of Alkyl Iodides
作者:Lewis Caiger、Huaibo Zhao、Timothée Constantin、James J. Douglas、Daniele Leonori
DOI:10.1021/acscatal.3c00571
日期:——
cross-couple unactivated secondary alkyl iodides with various N-, O-, and C-based nucleophiles. This strategy harnesses the ability of photoredox-generated phenyl radicals to mediate halogen-atom transfer (XAT) and convert alkyl iodides into the corresponding radicals. These species engage in a second catalytic cycle, mediated by copper, which enables C–N/O/C bond formation with the various nucleophiles
在这里,我们报告了一种工具箱策略,用于将未活化的仲烷基碘与各种基于 N、O 和 C 的亲核试剂交叉偶联。该策略利用光氧化还原产生的苯基自由基介导卤素原子转移 (XAT) 并将烷基碘转化为相应自由基的能力。这些物质参与由铜介导的第二个催化循环,从而能够与各种亲核试剂形成 C-N/O/C 键。