Synthesis of new 3,5-disubstituted isoxazoles with specific anti-group B rhinovirus activity in vitro
作者:M Mazzei、A Balbi、E Sottofattori、R Garzoglio、A De Montis、S Corrias、P La Colla
DOI:10.1016/0223-5234(93)90025-a
日期:1993.1
3,5-Disubstituted isoxazoles 4a-f were synthesized as potential anti-rhinovirus agents. These compounds were prepared in good yield by treatment of the corresponding 2-(dialkylamino)chromones 3a-f with hydroxylamine. Compounds 4 were demethylated to obtain dihydroxyderivatives 5, which were then transformed in acetyl-6 and alkylderivatives 7. The methylenbisderivatives 9 were obtained by reaction of bischromones 8 with hydroxylamine. Most compounds were subjected to antiviral screening. Compounds 4c, 7a, 7b and 7c were found to be specific inhibitors of group B rhinoviruses.