ETHYL OR METHYL 6-SUBSTITUTED 3-(BENZOYLAMINO)-2-OXO-2H-PYRAN-5-CARBOXYLATES AND LAMINO)-7,8-DIHYDRO-2H-1-BENZOPYRAN-2,5(6H)-DIONES WITH LOCAL-ANESTHETIC, PLATELET ANTIAGGREGATING AND OTHER ACTIVITIES
L. Mosti et al., ETHYL OR METHYL 6-SUBSTITUTED 3-(BENZOYLAMINO)-2-OXO-2H-PYRAN-5-CARBOXYLATES AND LAMINO)-7,8-DIHYDRO-2H-1-BENZOPYRAN-2,5(6H)-DIONES WITH LOCAL-ANESTHETIC, PLATELET ANTIAGGREGATING AND OTHER ACTIVITIES, Il Farmaco, 49(1), 1994, pp. 45-50
The synthesis of ethyl or methyl 6-substituted 3-(benzoylamino)-2-oxo-
2H-pyran-5-carboxylates 2 and lamino)-7,8-dihydro-2H-1-benzopyran-2,5(
6H)-diones 4 by reaction of hippuric acid in acetic anhydride with eth
yl or methyl 2-dimethylaminomethylene-3-oxoalkanoates and 2-dimethylam
inomethylene-1,3-cyclohexanediones, respectively, is described. Some c
ompounds 2 and 4 showed a strong local anesthetic activity in mice and
a platelet antiaggregating activity in vitro comparable to that of ac
etylsalicylic acid, as well as moderate analgesic, antiinflammatory an
d antiarrhythmic activities in rats and mice.