Acid catalyzed ring closure reactions of electrophilic alkenes
作者:Roland Verhé、Norbert de Kimpe、Dirk Courtheyn、Laurent de Buyck、Niceas Schamp
DOI:10.1016/0040-4020(82)80073-2
日期:1982.1
3-acyl-2-alkyl-4,5-dihydrofurans. Similar cyclization of α-acyl-α,β-unsaturated esters initially afforded 3-alkoxycarbonyl-2-alkyl-4,5-dihydrofurans which were transformed into 2-acylbutanolides on further reaction with sulfuric acid.
The present invention relates to compounds of formula I:
or a pharmaceutically acceptable salt or mixtures thereof that inhibit serine protease activity, particularly the activity of hepatitis C virus NS3-NS4A protease.
The present invention relates to compounds of formula I:
or a pharmaceutically acceptable salt or mixtures thereof that inhibit serine protease activity, particularly the activity of hepatitis C virus NS3-NS4A protease.