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US09428468B2 Process for the preparation of erlotinib 有权
厄洛替尼的制备方法

Process for the preparation of erlotinib
Abstract:
A process for the preparation of Erlotinib is disclosed in which the compound of formula (II) Is reacted with the compound of formula (III) in the presence of trifluoroacetic acid and formamidine acetate, in an aprotic solvent, and the reaction product is subsequently treated with a source of hydrochloric acid in a suitable solvent to give Erlotinib hydrochloride.
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