Inosine derivatives and production methods therefor
申请人:Torii Takayoshi
公开号:US20060094870A1
公开(公告)日:2006-05-04
The present invention provides a method for producing an inosine derivative represented by the following general formula (1) including the steps of subjecting an inosine derivative of general formula (3) to dithiocarbonylation and carrying out radical reduction of the obtained compound. According to the present invention there can be produced compounds useful as anti-AIDS drugs on industrial scale.
wherein R1 may be the same or different and are each benzyl group, benzhydryl group or trityl group, each of which may have a substituent in general formulas (1) and (3).
INOSINE DERIVATIVES AND PRODUCTION METHODS THEREFOR
申请人:TORII Takayoshi
公开号:US20110028706A1
公开(公告)日:2011-02-03
The present invention provides a method for producing an inosine derivative represented by the following general formula (1) including the steps of subjecting an inosine derivative of general formula (3) to dithiocarbonylation and carrying out radical reduction of the obtained compound. According to the present invention there can be produced compounds useful as anti-AIDS drugs on industrial scale.
wherein R1 may be the same or different and are each benzyl group, benzhydryl group or trityl group, each of which may have a substituent in general formulas (1) and (3).
Synthesis of 2′,3′-Dideoxyinosine via Radical Deoxygenation
作者:Takayoshi Torii、Kunisuke Izawa、Dae Hyan Cho、Doo Ok Jang
DOI:10.1080/15257770701508414
日期:2007.11.26
A synthetic method for 2 ′,3 ′-dideoxyinosine (ddI) from inosine was established via radical deoxygenation of N1,5 ′-O-diprotected-2 ′,3 ′-bis-S-methyl dithiocarbonate of inosine derivatives. The radical deoxygenation proceeded smoothly to give the desired dideoxy compounds in good yields using 1-ethylpiperidinium hypophosphite and triethylborane. Benzyl or p-methoxybenzyl protection of inosine at