Novel nonpeptidic inhibitors of HIV-1 protease obtained via a new multicomponent chemistry strategy
摘要:
Using a newly developed multicomponent chemistry strategy in combination with structure based drug design, a new class of HIV-1 protease inhibitors has been obtained. (C) 2004 Elsevier Ltd. All rights reserved.
A one-pot reaction of alcohols with trimethylsilyl cyanide and methanesulfonic acid with subsequent neutralization by triethylamine and dehydration by tosyl chloride and pyridine gave the corresponding isocyanides in moderate-to-high yields. This method was used to synthesize tertiary and benzylic isocyanides from the corresponding alcohols. isocyanides -alcohols- Ritter reactions
The present invention is directed to compounds of formula I and pharmaceutically acceptable salts, esters, and prodrugs thereof which are inhibitors of JAK kinase. The present invention is also directed to intermediates used in making such compounds, the preparation of such a compound, pharmaceutical compositions containing such a compound, methods of inhibition JAK kinase activity, methods of inhibition the platelet aggregation, and methods to prevent or treat a number of conditions mediated at least in part by JAK kinase activity, such as undesired thrombosis and Non Hodgkin's Lymphoma.
One-pot synthesis of oxazoles using isocyanide surrogates
作者:Laurent El Kaim、Laurence Grimaud、Aurélie Schiltz
DOI:10.1016/j.tetlet.2009.07.001
日期:2009.9
We wish to present herein a simple one-potsynthesis of 2,5-disubstitutedoxazoles, starting from benzyl halides and acyl chlorides. The in situ formation of isocyanides, followed by the addition of an acyl chloride in the presence of a base leads to the desired oxazoles in good yields.
作者:Laurence Grimaud、Laurent El Kaim、Aurélie Schiltz
DOI:10.1055/s-0029-1217184
日期:——
We present here a one-pot, four-component sequence that affords Ugi-type adducts starting from simple benzyl or allyl bromides. The isocyanides are prepared in situ under alkylation of silver cyanide salts and the resulting mixture is directly used in a Ugi-Smiles coupling.
A Convenient Method for the Preparation of Benzyl Isocyanides
作者:Yoshikazu Kitano、Tetsuya Manoda、Teppei Miura、Kazuhiro Chiba、Masahiro Tada
DOI:10.1055/s-2005-918517
日期:——
salts (AgClO 4 , AgBF 4 , or AgOTf) and trimethylsilyl cyanide (TMSCN) in CH 2 Cl 2 followed by cleavage of the carbon-silicon bond with aqueous NaHCO 3 or TBAF directly afforded the corresponding isocyanides.