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2, 4-dihydroxybenzaldehyde reacts for ethyl acetoacetate yielded 3-acetyl-7-hydroxy-2H-chromen-2-one (1), which was then cyclized with ethyl acetoacetate in the presence of ammonium acetate to give compound 3-acetyl-4-(4-(dimethylamino) phenyl) -6-(7
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc8ac0aa9bfce21ee74040f78ed418dd
https://doi.org/10.21203/rs.3.rs-1376918/v1
https://doi.org/10.21203/rs.3.rs-1376918/v1
