Nucleosides and linked nucleosides functionalized to include alkylthiol chemical functionality at ribofuranosyl positions, nucleosidic base positions, or on internucleoside linkages. In certain embodiments, the compounds of the invention further include steroids, reporter molecules, reporter enzymes, lipophilic molecules, peptides or proteins attached to the nucleosides through the alkylthio group.

The invention relates to 1,3-oxathiolane nucleoside analogues and their use in the treatment of viral infections. More specifically, this invention relates to (-)-4-amino-5-fluoro-1-(2-hydroxymethyl-1,3-oxathiolan-5-yl)-(1H)-pyrimidi n-2-one and pharmaceutically acceptable derivatives and pharmaceutical formulations thereof.

An antiviral topical pharmaceutical composition for treating viral diseases of the skin or mucosa comprises a poorly soluble antiviral nucleoside derivative, dispersed in an aqueous gel carrier containing a gelling agent and a water-soluble carboxylic or dicarboxylic acid salt.

A composition is disclosed for alleviating or managing symptoms associated with premenstrual syndrome "PMS" comprising an effective amount of an aqueous mixture of water and a rapidly digestible carbohydrate blend. The aqueous mixture is essentially free of protein and is characterized by a certain pH and ratio of water to carbohydrate blend. Methods of use of the composition for alleviating or managing symptoms associated with PMS are also disclosed.

The present invention provides for the preparation and use of ribo- and deoxyribo-nucleosides and polynucleotide analogs. The polynucleotide analogs are made of polynucleosides which contain sulfonate and sulfonamide linkages.

A specialized derivative of fructose in which the compound is a fructose ester complexed with .beta.-cyclodextrin. Preferably, the fructose derivative is fructosehexanoate .beta.-cyclodextrin complex, and more preferably the fructose derivative is fructose-1-O-hexanoate .beta.-cyclodextrin complex. Fructose pentanoate and fructose heptanoate .beta.-cyclodextrin complexes are also included within the scope of the invention, and the fructose ester and the .beta.-cyclodextrin must be combined in ap...

This invention discloses a method for the preparation of pyrimidine nucleosides modified at the 5-position of the pyrimidine ring using a palladium catalyst of the formula PdL.sub.3, wherein L is a ligand of palladium. Included in the invention are pyrimidine nucleosides modified at the 5-position prepared according to the method of the invention.

A method for preparing a chloroethylglucopyranose which comprises a) reacting glucose with from 2 to 10 times the molar amount of chloroethanol at from 100.degree. to 130.degree. C. in the absence of a catalyst, optionally removing water, b) further reacting the product of step (a) at 60.degree. to 90.degree. C. in the presence of an acidic catalyst for from 10 to 600 minutes and c) Separating therefrom the chloroethylglucopyranose.

This invention relates to compounds based on the 3-deazapurines ring system and to methods for making such compounds. The invention also generally relates to the field of "antisense" agents, agents that are capable of specific hybridization with a nucleotide sequence of an RNA. The 3- deazapurine-containing compounds of this invention can be useful for modulating the activity of RNA when incorporated into oligonucleotides. Oligonucleotides and their analogs are used for a variety of therapeutic ...

A novel process is provided for producing a nucleoside, such as cytarabine, or a nucleoside analogue, comprising the step of reacting 2,2'-O-cyclonucleoside or an analogue thereof with an amine. Preferably, the process is conducted in the presence of an aqueous solvent. A novel process for the production of the precursor 2,2'-O-cyclonucleoside compounds and pharmaceutically acceptable salts thereof is also provided which comprises reacting a 2,3'-O-diaikylstannylene nucleoside compound with an a...