Fluorophosphonate derivatives of N9-benzylguanine as potent, slow-binding multisubstrate analogue inhibitors of purine nucleoside phosphorylase
摘要:
The phosphonate derivatives of N-9-benzylguanine (4a-4h) have ban prepared as purine nucleoside phophorylase inhibitors. Enzyme inhibition studies with PNP from calf spleen or human erythrocyte show that compounds 4b and 4c are among the best PNP inhibitors ever reported, demonstrating further the importance of fluorines in such type of inhibitors.
A highly regio- and diastereoselective synthesis of 2-amino-1-hydroxy-2-aryl ethylphosphonicesters was achieved by opening trans 1,2-epoxy-2-aryl ethylphosphonicesters with 28% NH3(aq.) in methanol.
9-purinyl phosphonic acid derivitives for treating gout
申请人:Merrell Pharmaceuticals Inc.
公开号:US05494912A1
公开(公告)日:1996-02-27
This invention relates to novel purine nucleoside phosphorylase inhibitors, to the methods and intermediates for their preparation and to their use as immunosuppressants, antilymphoma, antileukemic, antiviral and antiprotozoal agents.
Quinine as chiral discriminator for determination of enantiomeric excess of diethyl 1,2-dihydroxyalkanephosphonates
作者:Alina Maly、Barbara Lejczak、Pawel Kafarski
DOI:10.1016/s0957-4166(03)00177-0
日期:2003.4
2-dihydroxyethanephosphonates obtained either by chemical or biocatalytic synthesis. Sharpless asymmetric dihydroxylation of diethyl trans-vinylphosphonates enabled differentiation of threo and erythro isomers of 1,2-dihydroxyphosphonates, and provided standards for the determination of the absolute configuration of each of enantiomeric pair of threo isomers.
A novel stereoselective synthesis of (E)-2-arylvinylphosphonates in InCl3–NaBH4–MeCN system
作者:Chunyan Wang、Yuanjiang Pan、Deyu Yang
DOI:10.1016/j.jorganchem.2005.01.024
日期:2005.3
Hydroindation of arylalkynylphosphonates gives a intermediate which can be hydrolyzed to (E)-2-arylvinylphosphonates in InCl3-NaBH4 MeCN system, the stereoselectivity and yield are rather high, but under the same conditions 2-alkylalkynylphosphonates do not react very well. (c) 2005 Elsevier B.V. All rights reserved.