The invention provides compounds, compositions and methods for treating medical disorders, such as cancer, an autoimmune disorder, and/or a neurological disorder, and inhibiting LINE1 reverse transcriptase and/or HERV-K reverse transcriptase using a compound according to Formula I or a pharmaceutically acceptable salt thereof, or a related compound provided herein.

The invention provides compounds, compositions and methods for treating medical disorders, such as cancer, an autoimmune disorder, and/or a neurological disorder, and inhibiting LINE1 reverse transcriptase and/or HERV-K reverse transcriptase using a compound according to Formula I or a pharmaceutically acceptable salt thereof, or a related compound provided herein.

Halogenated analogs of 5-aza-2′-deoxycytidine, such as halogenated analogs of 5-aza-4′-thio-2′-deoxycytidine (5-aza-T-dCyd) are described. Pharmaceutical compositions including a halogenated analog and methods of using the halogenated analogs to inhibit neoplasia are described. In some examples, the halogenated analogs have a structure according to formula Ia, or a stereoisomer, tautomer, or pharmaceutically acceptable salt thereof: ##STR00001##

Compounds that modulate CD73 activity, pharmaceutical compositions containing these compounds, and methods of using these compounds for treating diseases associated with CD73 activity are described herein.

The invention relates to a method of nucleic acid synthesis comprising the use of 3′-O-azidomethyl blocked nucleotide triphosphates which comprises the step of adding a capping group to any uncleaved 3′-O-azidomethyl groups and to the use of kits comprising said capping groups in a method of nucleic acid synthesis. The invention also relates to capped nucleotide triphosphates and 3′-O-azidomethyl capping groups.

The invention relates to a method of nucleic acid synthesis comprising the use of 3′-O-azidomethyl blocked nucleotide triphosphates which comprises the step of adding a capping group to any uncleaved 3′-O-azidomethyl groups and to the use of kits comprising said capping groups in a method of nucleic acid synthesis. The invention also relates to capped nucleotide triphosphates and 3′-O-azidomethyl capping groups.

Halogenated analogs of 5-aza-2′-deoxycytidine, such as halogenated analogs of 5-aza-4′-thio-2′-deoxycytidine (5-aza-T-dCyd) are described. Pharmaceutical compositions including a halogenated analog and methods of using the halogenated analogs to inhibit neoplasia are described. In some examples, the halogenated analogs have a structure according to formula Ia, or a stereoisomer, tautomer, or pharmaceutically acceptable salt thereof:

##STR00001##

Provided are compounds of Formula I,

##STR00001##

as well as pharmaceutical compositions containing compounds of Formula I and methods for treating Orthomyxoviridae virus infections by administering these compounds. The compounds, compositions, and methods provided are particularly useful for the treatment of Human Influenza virus infections.

Provided are compounds of Formula I,

##STR00001##

as well as pharmaceutical compositions containing compounds of Formula I and methods for treating Orthomyxoviridae virus infections by administering these compounds. The compounds, compositions, and methods provided are particularly useful for the treatment of Human Influenza virus infections.

The disclosure provides compounds of Formula (I), wherein X, Y, and Z are defined herein. The disclosure also provides particles comprising one or more compounds described herein, compositions comprising one or more compounds or particles described herein and a pharmaceutically acceptable carrier, and methods of treating a subject in need thereof comprising administering one or more compounds, particles, or compositions described herein to the subject.
X—Y—Z  (I).