Direct C<sub>sp2</sub>–H enolization: an allenoate alkylation cascade toward the assembly of multi-substituted furans
作者:Debanjan Bakshi、Anand Singh
DOI:10.1039/c7ob00248c
日期:——
A new disconnection toward tri- and tetrasubstituted furans has been conceptualized and demonstrated. A mild, base-mediated reaction of an allenoate pronucleophile with α-halo ketones/dicarbonyl compounds results in a Csp2-alkylation/enolization/O-vinylation sequence to ultimately afford substituted furanderivatives. The reaction offers a broad scope, provides a facile access to alkyl and aryl substituted
[EN] PROCESS FOR THE PREPARATION OF LERSIVIRINE<br/>[FR] PROCÉDÉ DE PRÉPARATION DE DÉRIVÉS DE LERSIVIRINE
申请人:PHIVCO UK LTD
公开号:WO2013057593A1
公开(公告)日:2013-04-25
The present invention relates to a process for the preparation of lersivirine or a pharmaceutically acceptable salt thereof characterised in that the solvent comprises isopropyl acetate.
本发明涉及一种制备勒西韦林或其药学上可接受的盐的方法,其特征在于溶剂包括丙酮酸异丙酯。
[EN] PROCESS FOR THE PREPARATION OF LERSIVIRINE<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION DE LERSIVIRINE
申请人:PHIVCO UK LTD
公开号:WO2013050884A1
公开(公告)日:2013-04-11
The present invention relates to a process for the preparation of lersivirine or a pharmaceutically acceptable salt thereof characterised in that it uses the base 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) and the solvent acetonitrile.