描述了顺式和反式-4-苄基和4-(3-甲氧基苄基)-2-甲氧基羰基-1-甲基哌啶的合成;参见下文。从这些化合物获得的氨基酸和氨基醇无法环化。已制备出顺式-2-苄基-4-乙氧基羰基-1-甲基哌啶,其氨基酸盐酸盐在160°C的多磷酸中环化,得到2,4,5,6,7-六氢-3-甲基-2, 6-methano-1 H -3-benzazonin-7-将其转化为几种衍生物。水解并环化通过两种途径获得的4-苄基-4-乙氧基羰基-1-甲基哌啶,得到N-甲基螺并[茚满-2,4'-哌啶] -1-酮,其也被转化为几种衍生物。
[EN] INHIBITORS OF ANTIGEN PRESENTATION BY HLA-DR<br/>[FR] INHIBITEURS DE PRÉSENTATION D'ANTIGÈNE PAR HLA-DR
申请人:JANSSEN PHARMACEUTICA NV
公开号:WO2021198283A1
公开(公告)日:2021-10-07
Chromanone compounds, pharmaceutical compositions containing them, methods of making them, and methods of using them including methods for treating disease states, disorders, and conditions associated with the inhibition of antigen presentation by HLA-DR.
An electroreductive arylation reaction of aliphatic and aromaticaldehydes as well as ketones with electro-deficient (hetero)arenes is described. A variety of cyano(hetero)arenes and carbonyl compounds, especially aliphatic aldehydes, have been examined, providing secondary and tertiary alcohols in moderate to good yields. Mechanistic studies, including cyclic voltammetry (CV), electron paramagnetic
A short, scalable and environmentally benignsynthesis of 2- and 4-substitutedbenzylpiperidines has been developed. The method is based on the temperature-programmed consecutive deoxygenation and heteroaromatic ring saturation of aryl(pyridin-2-yl)- and aryl(pyridin-4-yl)methanols and aryl(pyridin-4-yl)methanones in the presence of Pd/C catalyst. The crucial roles of the temperature, the acidity and
3-,4-Pyridyl and 4-quinolyl Grignardreagents were generated by the reaction of the corresponding phenyl sulfoxides with PhMgBr and give the adducts upon treatment with various aldehydes and ketones. The stereochemistry for the reaction was investigated.
Modular Synthesis of Benzoylpyridines Exploiting a Reductive Arylation Strategy
作者:Antonella Ilenia Alfano、Megan Smyth、Scott Wharry、Thomas S. Moody、Marcus Baumann
DOI:10.1021/acs.orglett.3c03833
日期:2024.4.12
a telescoped flow strategy to access electronically differentiated bisaryl ketones as potentially new and tunable photosensitizers containing both electron-rich benzene systems and electron-deficient pyridyl moieties. Our approach merges a light-driven (365 nm) and catalyst-free reductive arylation between aromaticaldehydes and cyanopyridines with a subsequent oxidation process. The addition of electron-donating