The present invention relates to new morpholinyl anthracycline derivatives which have cytotoxic activity and are useful in treating diseases such as cancer, cellular proliferation disorders and viral infections. The present invention also provides methods for preparing these compounds, pharmaceutical compositions comprising them and methods of treating diseases utilizing such compounds or the pharmaceutical compositions containing them.

The present invention relates to new morpholinyl anthracycline derivatives which have cytotoxic activity and are useful in treating diseases such as cancer, cellular proliferation disorders and viral infections. The present invention also provides methods for preparing these compounds, pharmaceutical compositions comprising them and methods of treating diseases utilizing such compounds or the pharmaceutical compositions containing them.

The invention provides compounds with enhanced permeability for selectively inhibiting glycosidases, prodrugs of the compounds, and pharmaceutical compositions including the compounds or prodrugs of the compounds. The invention also provides methods of treating diseases and disorders related to deficiency or overexpression of O-GlcNAcase, accumulation or deficiency of O-GlcNAc.

The invention provides compounds with enhanced permeability for selectively inhibiting glycosidases, prodrugs of the compounds, and pharmaceutical compositions including the compounds or prodrugs of the compounds. The invention also provides methods of treating diseases and disorders related to deficiency or overexpression of O-GlcNAcase, accumulation or deficiency of O-GlcNAc.

The current invention concerns methods for the synthesis of 6-azido-6-deoxy-2-N-acetyl-monosaccharide-nucleoside diphosphate, in particular 6-azido-6-deoxy-2-N-acetyl-D-galactosamine-nucleoside diphosphate or 6-azido-6-deoxy-2-N-acetyl-D-glucosamine-nucleoside diphosphate. The synthesis method according to the invention is characterized by being highly efficient and high yielding. Also part of the present invention are key intermediates of this process.

Provided are compositions and methods for specific fucosyltransferase inhibition for treatment of a variety of diseases. The compositions of the invention comprise a glycomimetic of L-Fucose that selectively inhibits the generation of sialyl Lewis X by FTVI and FTVII but has no effect on the generation of Lewis X by FTIX.

Provided are compositions and methods for specific fucosyltransferase inhibition for treatment of a variety of diseases. The compositions of the invention comprise a glycomimetic of L-Fucose that selectively inhibits the generation of sialyl Lewis X by FTVI and FTVII but has no effect on the generation of Lewis X by FTIX.

Provided are compositions and methods for specific fucosyltransferase inhibition for treatment of a variety of diseases. The compositions of the invention comprise a glycomimetic of L-Fucose that selectively inhibits the generation of sialyl Lewis X by FTVI and FTVII but has no effect on the generation of Lewis X by FTIX.

Provided are compositions and methods for specific fucosyltransferase inhibition for treatment of a variety of diseases. The compositions of the invention comprise a glycomimetic of L-Fucose that selectively inhibits the generation of sialyl Lewis X by FTVI and FTVII but has no effect on the generation of Lewis X by FTIX.

The present invention relates to disulfide masked prodrug compounds of formula I, compositions and methods that are amenable to bioactivation by a reducing agent such as glutathione:
WP(V)LG(Formula I),
wherein P(V)LG is a pentavalent phosphorus leaving group; and W is: ##STR00001##
wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are as defined in the specification. Such disulfide based compounds, compositions, and methods can be useful, for example, in providing novel prodrugs for use as therapeutics. Once administered, the prodrug is metabolized in vivo into an active metabolite in a process termed bioactivation.