我们报告了一种新的电化学无负载电解质方法,用于通过草酸氧化合成尿素、氨基甲酸酯和硫代氨基甲酸酯。这种简单、实用且无光气的路线包括在有机碱存在下通过草酸的阳极脱羧原位生成异氰酸酯中间体,然后一锅加入合适的亲核试剂以提供相应的尿素,氨基甲酸酯和硫代氨基甲酸酯。此程序适用于不同的胺、醇和硫醇。此外,当使用单程连续电化学流动条件并且该反应在碳石墨 C gr /C gr 在流动池中,可以在 6 分钟的停留时间内以高产率获得尿素化合物,解锁在批量条件下无法访问的底物,同时易于扩展。
我们报告了一种新的电化学无负载电解质方法,用于通过草酸氧化合成尿素、氨基甲酸酯和硫代氨基甲酸酯。这种简单、实用且无光气的路线包括在有机碱存在下通过草酸的阳极脱羧原位生成异氰酸酯中间体,然后一锅加入合适的亲核试剂以提供相应的尿素,氨基甲酸酯和硫代氨基甲酸酯。此程序适用于不同的胺、醇和硫醇。此外,当使用单程连续电化学流动条件并且该反应在碳石墨 C gr /C gr 在流动池中,可以在 6 分钟的停留时间内以高产率获得尿素化合物,解锁在批量条件下无法访问的底物,同时易于扩展。
[EN] PLASMINOGEN ACTIVATOR-1 INHIBITORS AND METHODS OF USE THEREOF<br/>[FR] INHIBITEURS DE L'ACTIVATEUR 1 DU PLASMINOGÈNE ET LEURS PROCÉDÉS D'UTILISATION
申请人:UNIV MICHIGAN
公开号:WO2014070983A1
公开(公告)日:2014-05-08
The invention relates to plasminogen activator- 1 (PAI-1) inhibitor compounds and uses thereof in the treatment of any disease or disorder associated with elevated PAI-1. The invention includes, but is not limited to, the use of such compounds to prevent or reduce thrombosis and fibrosis, to promote thrombolysis, and to modulate lipid metabolism and treat diseases or disorders associated with elevated PAI-1, cholesterol, or lipid levels.
The generation of carbamoyl radicals, followed by their addition to heteroarenes, was performed under mild conditions through a metal-free photocatalyzed decarboxylation of oxamic acids. The process has been applied to the carbamoylation of heteroaromatic bases using α-aminoacid-derived oxamic acids, leading to the corresponding amides without racemization.
PLASMINOGEN ACTIVATOR INHIBITOR-1 INHIBITORS AND METHODS OF USE THEREOF
申请人:THE REGENTS OF THE UNIVERSITY OF MICHIGAN
公开号:US20150315178A1
公开(公告)日:2015-11-05
The invention relates to plasminogen activator-1 (PAI-1) inhibitor compounds and uses thereof in the treatment of any disease or disorder associated with elevated PAI-1. The invention includes, but is not limited to, the use of such compounds to prevent or reduce thrombosis and fibrosis, to promote thrombolysis, and to modulate lipid metabolism and treat diseases or disorders associated with elevated PAI-1, cholesterol, or lipid levels.
In order to determine the reactivity characteristics of putative oxalamidine metabolites (monoamidines of oxalic acid or N,N-oxalins), a series of cyclic and acyclic derivatives were synthesized and their reactivities examined. The results indicate that around neutral pH at 37 degrees C oxalamidines are stable to hydrolysis or attack by nucleophiles typical of those that would be encountered physiologically. Also, under such conditions metal ions do not appreciably catalyze their destruction. The results further indicate that oxalamidines are stable to acid conditions (at least to 1 M HCl) but that they are readily hydrolyzed under basic conditions to oxamate derivatives. Kinetic and product data for the base-catalyzed reaction can be analyzed in terms of a mechanism similar to that proposed earlier for the hydrolysis of other amidines. This involves reversible addition of hydroxide to the protonated amidine followed by rate determining loss of amine. (C) 1995 Academic Press, Inc.
PLASMINOGEN ACTIVATOR-1 INHIBITORS AND METHODS OF USE THEREOF