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Synthesis of 3 methyl 5 methoxy 6 hydroxy 7 acetyl coumaronic acid and 3 7 di methyl 5 methoxy 9h furo 2 3 f 1 benzopyran 9 one 2 carboxylic acid and their derivatives



Synthesis of 3 methyl 5 methoxy 6 hydroxy 7 acetyl coumaronic acid and 3 7 di methyl 5 methoxy 9h furo 2 3 f 1 benzopyran 9 one 2 carboxylic acid and their derivatives



Polish Journal of Pharmacology & Pharmacy 35(5): 789-792



New 3-methyl-5-methoxy-6-hydroxy-7-acetylcoumaronic acid and several of its esters with aminoalcohols were obtained. By the condensation of this compound with ethyl acetate and Na 3,7-dimethyl-5-methoxy-9-H-furo [2,3-f] [1] benzopyran-9-one-2-carboxylic acid was obtained. Aminoesters of this acid show a weak hypotensive activity in animals.

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