Selective Reductions. V. The Partial Reduction of Tertiary Amides by Lithium Di- and Triethoxyaluminohydrides-A New Aldehyde Synthesis via the Dimethylamides
METHOD FOR THE CATALYTIC REDUCTION OF ACID CHLORIDES AND IMIDOYL CHLORIDES
申请人:Nikonov Georgii
公开号:US20140228579A1
公开(公告)日:2014-08-14
The present application relates to methods for the catalytic reduction of acid chlorides and/or imidoyl chlorides. The methods comprise reacting the acid chloride or imidoyl chloride with a silane reducing agent in the presence of a catalyst such as [Cp(Pr
i
3
P)Ru(NCMe)
2
]
+
[PF
6
]
−
.
[EN] SUBSTITUTED HETEROARYL COMPOUNDS AND METHODS OF USE<br/>[FR] COMPOSÉS HÉTÉROARYLE SUBSTITUÉS ET LEURS MÉTHODES D'UTILISATION
申请人:SUNSHINE LAKE PHARMA CO LTD
公开号:WO2019099311A1
公开(公告)日:2019-05-23
The present invention provides novel heteroaryl compounds, pharmaceutical acceptable salts and formulations thereof. They are useful in preventing, managing, treating or lessening the severity of a protein kinase-mediated disease. The invention also provides pharmaceutically acceptable compositions comprising such compounds and methods of using the compositions in the treatment of protein kinase-mediated disease.
Chlorides of a variety of acids: primary, secondary, tertiary, long chain aliphatic and αβ-unsaturated have been converted into aldehydes by reduction with formic acid at pH 9–10 at room temperature in high yields.
New nucleoside analogs from 2-amino-9-(β-<scp>d</scp>-ribofuranosyl)purine
作者:Piritta Virta、Toni Holmström、Mattias U. Roslund、Peter Mattjus、Leif Kronberg、Rainer Sjöholm
DOI:10.1039/b316413f
日期:——
Four novel derivatives of 2-amino-9-(β-D-ribofuranosyl)purine (1) were synthesised and fully characterised. When 1 was reacted with chloroacetaldehyde (a), 2-chloropropanal (b), bromomalonaldehyde (c) and a mixture of chloroacetaldehyde + malonaldehyde (d), 3-(β-D-ribofuranosyl)-imidazo-[1,2a]purine (2), 3-(β-D-ribofuranosyl)-5-methylimidazo-[1,2a]purine (3), 3-(β-D-ribofuranosyl)-5-formylimidazo-[1,2a]purine (4) and 9-(β-D-ribofuranosyl)-2-(3,5-diformyl-4-methyl-1,4-dihydro-1-pyridyl)purine (5) were formed, respectively. The products were isolated, purified by chromatography and characterised by MS, complete NMR assignment as well as fluorescence and UV spectroscopy. The yields of these reactions were moderate (14â20%). The fluorescence properties differed from those of the starting compound and the quantum yields were considerably lower.