A resin linked with the Tamiflu core was synthesized by modifying our original synthetic route Of oseltamivir phosphate (Tamiflu). The prepared resin bound to the influenza virus enzyme neuraminidase, the main target of Tamiflu. The immobilized Tamiflu analog will be useful for isolating and identifying presumed endogenous vertebrate proteins that interact with Tamiflu, which might relate to the abnormal behavior exhibited by some influenza patients treated with Tamiflu. (C) 2009 Elsevier Ltd. All rights reserved.
Ligand, Method for Producing the Same, and Catalyst Using the Ligand
申请人:Shibasaki Masakatsu
公开号:US20090023579A1
公开(公告)日:2009-01-22
Disclosed is a novel asymmetric ligand which can be synthesized by a short process at low cost and is capable of exhibiting higher catalytic activity and enantioselectivity than the conventional ligands derived from sugars. Also disclosed are a method for producing such an asymmetric ligand, and a catalyst using such an asymmetric ligand. Specifically disclosed is a ligand represented by the general formula I below or the like. (In the formula, R
1
and R
2
independently represent 0-5 substituents; X represents P, As or N; m represents an integer of 0-7; n represents an integer of 0-3; A
1
-A
4
independently represent hydrogen, fluorine, chlorine, bromine, benzoyl or acetyl, or alternatively A
2
and A
3
combine together to form a ring.)