[EN] FUSED 6,5 BICYCLIC RING SYSTEM P2 LIGANDS, AND METHODS FOR TREATING HIV [FR] LIGANDS P2 À SYSTÈME CYCLIQUE 6,5 BICYCLIQUE FUSIONNÉ, ET PROCÉDÉS DE TRAITEMENT D'UNE INFECTION PAR LE VIH
[3+2]-Cycloaddition reactions of 2-phenyliodonio-1,3-dioxacyclohexanemethylide: Facile synthesis of fused dihydrofuran derivatives
作者:Amalia Asouti、Lazaros P. Hadjiarapoglou
DOI:10.1016/s0040-4039(98)01997-2
日期:1998.12
Iodonium ylide 2, derived from 1,3-cyclohexadione, undergoes thermal [3+2]-cycloaddition with acetonitrile, carbon disulfide and p, p′-dimethoxythiobenzophenone with Cu(acac)2 catalysis to form the corresponding 5-membered heterocycles and alkene respectively. Photochemically 2 reacts with various alkenes and dienes to form dihydrofuranderivatives, key intermediates for paniculide A, B and pentalene
Electrochemical oxidation of 1,3-diketones in the presence of olefins afforded the formal [3+2] cycloaddition products, dihydrofuran derivatives or tetrahydrofuran derivatives. A mechanism involving attack of a radical intermediate to an olefin has been proposed.
Novel cyclohexanone derivatives of general formula: ##STR1## (wherein R.sup.1 is a hydrocarbon group of 1 to 15 carbon atoms) and new cyclohexanone derivatives of general formula: ##STR2## (wherein R.sup.1 and R.sup.2 each is a hydrocarbon group of 1 to 15 carbon atoms) are produced by an electrooxidative coupling of 1,3-cyclohexanedione with a vinyl ether of general formula: CH.sub.2 .dbd.CH-O-R.sup.1 (wherein R.sup.1 is as defined above) in the presence or absence of an alcohol of general formula: R.sup.2 OH (wherein R.sup.2 is as defined above). These new cyclohexanone derivatives can be easily converted to N-substituted or unsubstituted-4-oxo-4,5,6,7-tetrahydroindoles, which are of value as intermediates for the production of N-substituted or unsubstituted-4-hydroxyindoles and, thence, to pindolol and its analogs.
Inhibitors of HIV-1 protease and compositions containing them are described. Use of the inhibitors and compositions containing them to treat HIV, AIDS, and AIDS-related diseases is described.