There is provided a compound of formula (III), and a process for preparing a compound of formula (V) comprising converting a compound of formula (III) to the compound (V), wherein (X) is fluoro, chloro, bromo or iodo. There is also provided a process for preparing a compound of formula (XI) comprising converting a compound of formula (X) to the compound (XI). The compounds (V) and (XI) so prepared may be used in a process for preparing gefitinib.
There is provided a compound of formula III, and a process for preparing a compound of formula V comprising converting a compound of formula III to the compound V, wherein X is fluoro, chloro, bromo or iodo.
There is also provided a process for preparing a compound of formula XI comprising converting a compound of formula X to the compound XI.
The compounds V and XI so prepared may be used in a process for preparing gefitinib.
[EN] PROCESS FOR THE PREPARATION OF GEFITINIB<br/>[FR] PROCÉDÉ DE PRÉPARATION DU GEFITINIB
申请人:CIPLA LTD
公开号:WO2008125867A2
公开(公告)日:2008-10-23
[EN] There is provided a compound of formula (III), and a process for preparing a compound of formula (V) comprising converting a compound of formula (III) to the compound (V), wherein (X) is fluoro, chloro, bromo or iodo. There is also provided a process for preparing a compound of formula (Xl) comprising converting a compound of formula (X) to the compound (Xl). The compounds (V) and (Xl) so prepared may be used in a process for preparing gefitinib. [FR] L'invention porte sur un composé de formule III, et sur un procédé de préparation d'un composé de formule V comprenant la conversion d'un composé de formule III en le composé V, dans lequel X représente fluoro, chloro, bromo ou iodo. Il est également proposé un procédé de préparation d'un composé de formule X1 comprenant la conversion d'un composé de formule X en le composé X1. Les composés V et X1 ainsi préparés peuvent être utilisés dans un procédé de préparation du gefitinib.