Synthesis of substituted thienopyrimidine-4-ones |
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Authors: | Ivachtchenko Alexandre Kovalenko Sergiy Tkachenko Olena V Parkhomenko Oleksiy |
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Institution: | Chemical Diversity Labs, Inc., 11558 Sorrento Valley Road, Suite 5, San Diego, California 92121, USA. av@chemdiv.com |
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Abstract: | The parallel solution-phase synthesis of more than 3000 substituted thienopyrimidin-4-ones has been accomplished. Key reactions include assembly of the 2-thioxopyrimidin-4-one ring by condensation of isomeric aminothiophenecarboxylates or their appropriate reactive derivatives (isothiocyanates or dithiocarbamates) with the corresponding isothiocyanates or amines. The libraries from libraries were then obtained in good yields and purities using solution-phase alkylation and acylation methodologies. Simple manual techniques for parallel reactions using special CombiSyn synthesizers were coupled with easy purification procedures (crystallization from the reaction mixtures) to give high-purity final products. The scope and limitations of the developed approach are discussed. |
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