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The present paper (publication) concerns the synthesis of new isoxazole[4,5‐d]pyrimidine derivatives. There are only a few publications in the chemical literature that report the derivatives of the [4,5‐d] isomer. Our new compounds, the derivatives of this isomer, were obtained using a new manner that differs from those reported in the aforementioned publications in that we used the tautomers of 3‐arylo‐4‐imino‐5‐carbethoxy...
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