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.
提供一种化合物的公式(III),以及制备公式(V)的方法,包括将公式(III)的化合物转化为化合物(V),其中(X)为
氟、
氯、
溴或
碘。还提供一种制备公式(XI)的化合物的方法,包括将公式(X)的化合物转化为化合物(XI)。制备的化合物(V)和(XI)可用于制备
吉非替尼的过程中。