Process for the preparation of alpha-aminosubstituted carboxylic acid amides
申请人:——
公开号:US20040034250A1
公开(公告)日:2004-02-19
The invention relates to a process for the preparation of &agr;-aminosubstituted carboxylic acid amide compounds and/or their salts comprising reacting a carboxylic acid amide of a primary amine with a nitrosylating agent in the presence of a base followed by hydrolysis to give a hydroxy imino derivative followed by hydrogenation and if necessary converting a base or acid of the &agr;-aminosubstituted carboxylic acid amide into one of its salts.
(7a-o) were designed, synthesized and evaluated as multi-potent anti-Alzheimerdrugcandidates. The screening results showed that most of them exhibited a significant ability to inhibit ChEs, certain selectivity for AChE over BuChE and strong potency inhibitory of self-induced β-amyloid (Aβ) aggregation. All IC50 values of biological activity were at the nanomolar range. Especially, compound 7c displayed
Synthesis and in vitro evaluation of neutral aryloximes as reactivators of Electrophorus eel acetylcholinesterase inhibited by NEMP, a VX surrogate
作者:Samir F. de A. Cavalcante、Daniel A.S. Kitagawa、Rafael B. Rodrigues、Leandro B. Bernardo、Thiago N. da Silva、Wellington V. dos Santos、Ana Beatriz de A. Correa、Joyce S.F.D. de Almeida、Tanos C.C. França、Kamil Kuča、Alessandro B.C. Simas
DOI:10.1016/j.cbi.2019.05.048
日期:2019.8
nervous system. In searching for structural factors that may be explored in SAR studies, we synthesized and evaluated neutral aryloximes as reactivators for acetylcholinesteraseinhibited by NEMP, a VX surrogate. Although few tested compounds reached comparable reactivation results with clinical standards, they may be considered as leads for further optimization.
Indium metal as a reducing agent in organic synthesis
作者:Michael R. Pitts、Justin R. Harrison、Christopher J. Moody
DOI:10.1039/b101712h
日期:——
aromatic nitrocompounds under similar conditions results in selectivereduction of the nitro groups; ester, nitrile, amide and halide substituents are unaffected. Likewise indium in aqueous ethanolic ammonium chloride is an effective method for the deprotection of 4-nitrobenzyl ethers and esters. Indium is also an effective reducing agent under non-aqueous conditions and α-oximino carbonyl compounds can