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چکیده
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In this research project, new derivatives of New derivatives of 5H -chromeno [3,4-b] pyridine-
5-one have been synthesized. These derivatives have been synthesized from the reaction between
the vinamidinium salts with 4-hydroxyaminocoumarin in the presence of the N-ethyl di
isopropylamine in the DMF (Fig. 1).
The structures of these new compounds have been identified by analysis, 1H NMR, and 13C
NMR spectroscopy.
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