A new route to secondary amines from bis-(alkoxymethyl)-alkylamines - the activation of an aminomethyl group and protection of the product by the same functional group
作者:Martyn J. Earle、Robin A. Fairhurst、Harry Heaney、George Papageorgiou、Robert F. Wilkins
DOI:10.1016/s0040-4039(00)97589-0
日期:1990.1
variety of acidic reagents affords good yields of N-alkoxymethyl-N-alkylmethyleneiminium salts which react with trimethylsilyl enol ethers, and nucleophilic aromatic substrates to form protected secondary amines or tertiary amines by domino reactions; silyl ketene acetals afford tertiary amines only.
Buchner reaction and aliphatic 1,4-C-H insertion under the catalysis of copper salts. The less steric N-alkyl substituents in the amide moiety generally favor the aliphatic 1,4-C-H insertion, while the more steric N-alkyl substituents generally favor the Buchner reaction. Compared with rhodium and ruthenium-catalyzed conditions, the current copper-catalyzed conditions improved the Buchner reaction selectivity
3-烷基(芳基甲基)氨基-2-重氮-3-氧代丙酸乙酯(重氮酰胺基乙酸酯)通常同时生成环庚[ c ]吡咯烷酮(Buchner产物)和β-内酰胺(1,4-插入产物),并显示出明显的N-铜盐催化下分子内布氏反应与脂肪族1,4-CH插入之间的取代基控制的化学选择性。酰胺部分中较少的空间N-烷基取代基通常有利于脂肪族1,4-CH插入,而较高的空间N-烷基取代基通常有利于布氏反应。与铑和钌催化的条件相比,当前的铜催化条件提高了3-烷基(芳基甲基)氨基-2-重氮-3-氧代丙酸乙酯的布氏反应选择性。
The use of bis(aminol) ethers derived from aliphatic primary amines in the synthesis of secondary and tertiary amines
作者:Harry Heaney、George Papageorgiou
DOI:10.1016/0040-4020(96)00026-9
日期:1996.3
prepared from primary aliphatic amines and benzylamine together with formaldehyde and either ethanol or methanol; they were reacted with electrophiles to give N-alkyl-N-alkoxymethyl-methyleneiminium salts which gave mixtures of secondary and tertiaryamines in reactions with electron rich aromatic compounds: sequential reactions with two different nucleophiles gave the expected tertiaryamines.
The present invention relates to drug delivery systems comprising ocular implant, which include organic molecules, capable of modulating tyrosine kinase signal transduction in order to regulate, modulate and/or inhibit abnormal cell proliferation, in combination with a polymer, which polymer serves to control, modify, modulate and/or slow the release of the therapeutic component into the environment of the eye in which said composite is placed.
TRICYCLIC PYRIDO-CARBOXAMIDE DERIVATIVES AS ROCK INHIBITORS
申请人:BRISTOL-MYERS SQUIBB COMPANY
公开号:US20160152628A1
公开(公告)日:2016-06-02
The present invention provides compounds of Formula (I): or stereoisomers, tautomers, or pharmaceutically acceptable salts thereof, wherein all the variables are as defined herein. These compounds are selective ROCK inhibitors. This invention also relates to pharmaceutical compositions comprising these compounds and methods of treating cardiovascular, smooth muscle, oncologic, neuropathologic, autoimmune, fibrotic, and/or inflammatory disorders using the same.