Abstract
Previously synthesized ethyl 2-benzamido-4-(1,4-benzodioxan-2-yl)thiophene-3-carboxylates were cyclized to 2-aryl-3-aminothieno[2,3-d]pyrimidin-4(1H)-ones by the action of hydrazine hydrate. The condensation of ethyl 2-amino-4-(1,4-benzodioxan-2-yl)thiophene-3-carboxylate with chloroacetyl chloride gave the corresponding N-substituted 2-chloroacetamide which reacted with piperidine and morpholine to produce 2-aminoacetamides, and the latter were also subjected to cyclization with hydrazine hydrate to obtain 3-aminothienopyrimidin-4-one derivatives. The synthesized compounds were tested for antihypoxic activity.
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Vardanyan, S.O., Avagyan, A.S., Sargsyan, A.B. et al. Synthesis of Substituted Thienopyrimidinones Based on Ethyl 2-Amino-4-(1,4-benzodioxan-2-yl)thiophene-3-carboxylate. Russ J Org Chem 60, 397–402 (2024). https://doi.org/10.1134/S1070428024030047
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DOI: https://doi.org/10.1134/S1070428024030047