577780-04-2Relevant academic research and scientific papers
THIENOPYRIMIDINES, PROCESS FOR PREPARING THE SAME AND USE THEREOF
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Page 19, (2008/06/13)
The present invention provides a thienopyrimidine compound, represented by the formula???[wherein, R1 is C1-4 alkyl, R2 is (1) phenyl optionally having a substituent such as amino, mono C1-4 alkylamino and di C1-4 alkylamino, or (2) a heterocyclic group optionally having a substituent such as amino, mono C1-4 alkylamino and di C1-4 alkylamino and the like, R3 is a hydrogen atom or C1-4 alkyl, R4 is C1-4 alkyl optionally having a substituent such as C1-4 alkoxy-carbonyl, carboxyl, mono C1-4 alkylamino and N-C1-4 alkyl-N-C7-10 aralkylamino and the like] or a salt thereof, which has antagonistic action for gonadotropin-releasing hormone.
