[Synthesis of derivatives of 4,9-dimethoxy-5-methyl-7H-furo-(3,2-g)-1-benzopyrano-6-carboxy-7-one].
Compounds of the 7H-furo-[3,2-g]-1-benzopyran system are prepared by condensation of kellinone with malonic acid derivatives. The 4,9-dimethoxy-5-methyl-7-H-furo-[3,2g]-1-benzopyran-7-one-6-carboxylic acid chloride reacts with aliphatic and heterocyclic amines and with aliphatic aminoalcohols giving amides that could have pharmacological interest.
D000577:Amides / Q000138:chemical synthesis; D000588:Amines; D001578:Benzopyrans / Q000138:chemical synthesis*; D005663:Furans / Q000138:chemical synthesis
D000577:Amides; D000588:Amines; D001578:Benzopyrans; D005663:Furans
Sintesi di derivati del 4,9-dimetossi-5-metil-7H-furo-[3,2g]-1-benzopirano-6-carbossi-7-one