Design and synthesis of a functionally selective D3 agonist and its in vivo delivery via the intranasal route
摘要:
This paper reports the synthesis and biological activity of a novel series of aryl-morpholine dopamine receptor agonists. Several compounds show high levels of functional selectivity for the D3 over the D2 dopamine receptor. Compound 26 has > 1000-fold functional selectivity and has been successfully progressed in vivo using an intranasal delivery route. (c) 2007 Elsevier Ltd. All rights reserved.
The selective preparation of n-propylamines by the rhodium catalysed reaction of ethylene and syngas with alkylamines
作者:M.D. Jones
DOI:10.1016/0022-328x(89)87190-6
日期:1989.5
The aminomethylation of ethylene with a primary amine has been shown to provide a highly selective route to n-propylamines; the rhodium catalysed reaction of n-propylamine with ethylene and syngas (2/1, H2/CO) affords di-n-propylamine with 98% selectivity (with respect to ethylene). The reaction of amines of the type RR1NH with the ethylene/syngas mixture and a rhodium catalyst provides a highly selective
已显示乙烯与伯胺的氨基甲基化为正丙胺提供了高度选择性的途径。n-丙胺与乙烯和合成气(2 / 1,H 2 / CO)的铑催化反应得到二正丙胺(相对于乙烯)具有98%的选择性。RR 1 NH型胺与乙烯/合成气混合物和铑催化剂的反应为正丙胺RR 1 NPr(R = Pr,R 1 = H; R = t-Bu)提供了高度选择性和通用的途径,R 1 = H; R = n-Bu,R 1 = H; R = C 8 H 17,R 1 = H,R = R 1 = Pr; R = HOCH 2 CH在图2中,R 1= H,R = PhCH(OH)CH 2,R 1= H)。
Immobilized Pseudomonas sp. lipase: A powerful biocatalyst for asymmetric acylation of (±)-2-amino-1-phenylethanols with vinyl acetate
作者:Deniz Yildirim、S. Seyhan Tükel
DOI:10.1016/j.procbio.2013.04.019
日期:2013.5
gram of support (%) and recovered activity (%). A 4-factor and 3-level Box–Behnken design was applied for the acylation of (±)-2-(propylamino)-1-phenylethanol, a model substrate, with vinylacetate and the asymmetric acylations of other (±)-2-amino-1-phenylethanols with different alkyl substituents onto nitrogen atom such as (±)-2-(methylamino)-1-phenylethanol, (±)-2-(ethylamino)-1-phenylethanol,
Benzimidazole derivatives and their use as a medicament
申请人:Poitout Lydie
公开号:US20090170922A1
公开(公告)日:2009-07-02
A subject of the present application is new benzimidazole derivatives of formula
in which A, Y, R
1
, R
2
, R
3
and R
4
represent different variable groups. These products have an antagonist activity of GnRH (Gonadotropin-Releasing Hormone). The invention also relates to pharmaceutical compositions containing said products and their use for the preparation of a medicament.
Ga‐Catalyzed Temperature‐Dependent Oxazolidinone/Piperazine Synthesis from Phenyl Aziridines Involving a Divergent Ligand‐Assisted Mechanism
作者:Maria Distressa G. Billacura、Ryan D. Lewis、Neil Bricklebank、Alex Hamilton、Christopher J. Whiteoak
DOI:10.1002/adsc.202300537
日期:2023.9.19
of CO2 and aziridines to form oxazolidinones is presented. It has been possible to optimize the catalyst system for the selective formation of a single regioisomer, in excellent yield, under relatively mild reaction conditions. The optimized catalyst system has been successfully applied to a range of substituted aziridines derived fromstyrene oxide. It has been observed that aziridines bearing two
An environmentally safe method of preparing a certain dialkylamine
申请人:MAKHTESHIM CHEMICAL WORKS LIMITED
公开号:EP0403952A2
公开(公告)日:1990-12-27
N-n-propyl-N-2-(2,4,6-trichlorophenoxy) ethyl amine is prepared by reacting 2-phenoxy ethanol with thionyl chloride in the presence of a catalytic amount of tetra-alkyl ammonium halide optionally in the presence of a solvent to form 2-phenoxy ethyl chloride; reacting the 2-phenoxy ethyl chloride with n-propylamine at a temp-erature of from 50°C to 150°C optionally in the presence of a solvent to form N-n-propyl-N-2-phenoxy-ethyl amine; selectively chlorinating N-n-propyl-N-2-phenoxyethyl amine with chlorine in the presence of a solvent; and recovering the N-n-propyl-N-2-(2,4,6-trichlorophenoxy) ethyl amine formed.