Abstract
The reaction of 4-dialkylamino-6-chloro-2-methylthiopyrimidine-5-carbaldehydes with ethyl mercaptoacetate in the presence of triethylamine gives the corresponding ethyl esters of thieno[2,3-d]pyrimidine-6-carboxylic acids. These esters were subjected to alkaline hydrolysis, hydrazinolysis, and lithium aluminum hydride reduction to give the corresponding acids, hydrazides, and (thieno[2,3-d]pyrimidin-6-yl)methanols.
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Tumkevicius, S., Kaminskas, A. Synthesis and Properties of Ethyl Esters of 4-Dialkylamino-2-methylthiothieno[2,3-d]pyrimidine-6-carboxylic Acids. Chemistry of Heterocyclic Compounds 39, 664–668 (2003). https://doi.org/10.1023/A:1025114703659
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DOI: https://doi.org/10.1023/A:1025114703659