Studies of phosphorylation reaction of tertiary amines by NMR spectroscopy
作者:L. I. Larina、V. G. Rozinov、T. N. Komarova
DOI:10.1007/s11172-013-0006-4
日期:2013.1
amines containing at least two ethyl groups at the nitrogen atom with phosphorus pentachloride was studied. New C-chlorophosphorylated enamines were characterized by NMR spectroscopy. A scheme was suggested for the phosphorylation reaction. It was found that the presence of two aryl substituents in the molecule of tertiary ethylamine deactivated the ethyl group to block phosphorylation. Phosphorylation
Aluminium complex as an efficient catalyst for the chemo-selective reduction of amides to amines
作者:Suman Das、Himadri Karmakar、Jayeeta Bhattacharjee、Tarun K. Panda
DOI:10.1039/c9dt01806a
日期:——
(HBpin) to afford the corresponding amines in high yields using aluminiumcomplexes [κ2-Ph2P(X)NC9H6N}Al(Me)2] [X = S (2a), Se (2b)] as pre-catalysts at room temperature. The aluminiumcomplexes were prepared from the reaction of [Ph2P(X)NC9H6N] [X = S (1a), Se (1b)] and trimethylaluminium in toluene. The solid-state structure of complex 2b is established. Tertiary amides with a wide array of electron-withdrawing
A
3
agonists having Formula I are described herein as well as methods of using such A
3
agonists and pharmaceutical compositions containing such A
3
agonists.
1
The A
3
agonists are useful for the reduction of tissue damage resulting from tissue ischemia or hypoxia.
Novel 3,5,and/or 6 substituted analogues of swainsonine processes for their preparation and their use as therapeutic agents
申请人:GlycoDesign Inc.
公开号:US20030236229A1
公开(公告)日:2003-12-25
The invention relates to novel 3, 5, and/or 6 swainsoninc analogues, processes for their preparation and their use as therapeutic agents. The invention also relates to pharmaceutical compositions containing the compounds and their use as therapeutics.