This invention relates to a method of preparing gefitinib and an intermediate used therein. In the method of preparing gefitinib, the production of an N-alkylated impurity can be suppressed via a simple process, and thus, gefitinib having high purity can be obtained with high efficiency without a complicated separation process such as chromatography, thereby enabling the effective mass production of gefitinib.
本发明涉及一种制备
吉非替尼的方法和所使用的中间体。在制备
吉非替尼的方法中,可以通过简单的处理抑制N-烷基化杂质的产生,因此可以高效地获得高纯度的
吉非替尼,而无需进行复杂的层析分离过程,从而实现
吉非替尼的有效大规模生产。