[EN] PROCESS FOR THE PREPARATION OF ATROPISOMERIC ANALOGUES OF 4-AMINOPYRIDINE<br/>[FR] PROCEDE POUR PREPARER DES ANALOGUES ATROPISOMERIQUES DE 4-AMINOPYRIDINE
申请人:IMP COLLEGE INNOVATIONS LTD
公开号:WO2005000855A1
公开(公告)日:2005-01-06
The present invention relates to a process for the preparation of 3,4-disubstituted pyridines from commercially available starting materials. In particular, the invention relates to the process for the preparation for a compound of formula (I) wherein a compound of formula (II) undergoes an elimination reaction to remove the groups Z and Y, followed by the addition of a group H-NR1R2. The 3,4-disubstituted pyridines can be used commercially in acylative kinetic resolutions and asymmetric desymmetrisations.
本发明涉及一种从商业上可获得的起始材料制备3,4-二取代吡啶的方法。具体而言,该发明涉及一种制备式(I)化合物的方法,其中式(II)化合物经历消除反应以去除基团Z和Y,随后加入基团H-NR1R2。这些3,4-二取代吡啶可以在酰基动力分辨和不对称去对称化中商业上使用。