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US06689885B2 Method for producing thienopyrimidines 失效
噻吩并嘧啶的制备方法

Method for producing thienopyrimidines
摘要:
The invention relates to a process for preparing compounds of the formula I In this process a 2-aminobenzothiophene-3-carboxylic ester of the formula II is reacted with a nitrile of the formula III N≡C—R1   III in solution or suspension in a solvent in the presence of an acid.
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