[EN] IMPROVED AND COMMERCIALLY VIABLE PROCESS FOR THE PREPARATION OF HIGH PURE PLERIXAFOR BASE<br/>[FR] PROCÉDÉ AMÉLIORÉ ET COMMERCIALEMENT VIABLE POUR LA PRÉPARATION DE PLÉRIXAFOR BASE DE HAUTE PURETÉ
申请人:NATCO PHARMA LTD
公开号:WO2014125499A1
公开(公告)日:2014-08-21
The present invention relates to an improved and commercially viable process for the preparation of ≥ 99.8% pure plerixafor base (1) by HPLC. The process of the present invention involves simple crystallization techniques to isolate the compounds at each step without employing the laborious column chromatography technique. The solid state characteristics of plerixafor base also discussed by PXRD, DSC and I.R spectroscopy.
Direct Synthesis of 1,1‘-[1,4-Phenylenebis(methylene)]-bis- 1,4,8,11-tetraazacyclotetradecane Octahydrochloride (AMD 3100) without the Use of Protecting Groups
作者:Michal Achmatowicz、Louis S. Hegedus
DOI:10.1021/jo030146r
日期:2003.8.1
A four-step synthesis of the title compound starting from methyl acrylate, ethylenediamine, and dimethyl malonate is reported. The synthesis can be run on a multigram scale and is operationally simple. The use of protectinggroups is avoided by utilizing the trioxocyclam as the key coupling intermediate.