Hydroxyalkylammonium-pyrimidines or purines and nucleoside derivatives,
申请人:University of North Carolina
公开号:US05550132A1
公开(公告)日:1996-08-27
Novel hydroxyalkylammonium-pyrimidine of the formula ##STR1## and nucleoside derivatives have been found to be useful as inhibitors of inflammatory cytokines. They can be used, inter alia, in the therapy of septic shock, cachexia, rheumatoid arthritis, inflammatory bowel disease, multiple sclerosis and AIDS. The compounds are typically prepared by reaction of an iodo substituted nucleoside with the appropriately substituted hydroxyalkylamine.
Hydroxyalkylammonium-pyrimidines and nucleoside derivatives, useful as
申请人:Macronex, Inc.
公开号:US05679684A1
公开(公告)日:1997-10-21
Novel hydroxyalkylammonium-pyrimidine of the formula ##STR1## and nucleoside derivatives have been found to be useful as inhibitors of inflammatory cytokines. They can be used, inter alia, in the therapy of septic shock, cachexia, rheumatoid arthritis, inflammatory bowel disease, multiple sclerosis and AIDS. The compounds are typically prepared by reaction of an iodo substituted nucleoside with the appropriately substituted hydroxyalkylamine.
An acyclonucleoside synthesis was investigated on the regioselective introduction of an acyclochain. We found that iodotrimethylsilane catalyzed the reaction of acyclochain introduction as well as its migration from S-2 to N-1 of 2-thiothymine and from N-7 to N-9 position of guanine. By taking the findings into account, several acyclonucleosides were synthesized in a simple one-pot procedure.
One-Pot Synthesis of Antiviral Acyclovir and Other Nucleosides Derivatives Using Doped Natural Phosphate as Lewis Acid Catalyst
作者:Hassan B. Lazrek、Laila Baddi、Michael Smietana、Jean-Jacques Vasseur、Saïd Sebti、Mohamed Zahouily
DOI:10.1080/15257770802341285
日期:2008.9.19
Natural phosphate doped with iodine or potassium iodide is an active catalyst for the one-pot synthesis of acyclonucleosides. To demonstrate the utility of the new catalyst system, the highly important antiviral drug acyclovir was directly and regioselectively obtained from NAcG with no byproducts.
Natural phosphate as Lewis acid catalyst: a simple and convenient method for acyclonucleoside synthesis
A new and efficient method for the synthesis of N-1/N-9-[(2-acetoxyethoxy)methyl]pyrimidine/purine using natural phosphate as Lewis acid catalyst was developed. (C) 2001 Elsevier Science Ltd. All rights reserved.