Abstract: The present application provides methods and compositions for treatment or reducing risk of dsDNA virus infection in post-hematopoietic cell transplant (HCT or HSCT) patients. This application also provides methods and composition for reducing the incidence of BK virus associated hematuria and/or renal impairment. The invention also relates to a method of lowering BK viral load in post-hematopoietic cell transplant (HCT or HSCT) patients with HDP-CDV (HDP-CDV) or compound of Formula II, or a pharmaceutically acceptable salt thereof, thereby delaying onset of or reducing risk of end organ disease in these patients.

Abstract: The present invention describes compounds of formulae I and II and methods for treating viral infection, such as Flaviviridae virus infection, including Hepatitis C infection (HCV).

Abstract: Disclosed are compounds of formula A: and pharmaceutically acceptable salts thereof, wherein R1, R2, R2?, R3, R21, A1, A2, X, and Z are as defined herein. Compounds of formula A are useful in the treatment of diseases and/or conditions related to cell differentiation, such as cancer, inflammation, arthritis, angiogenesis, or the like. Also disclosed are pharmaceutical compositions comprising compounds of the invention and methods of treating the aforementioned conditions using such compounds.

Abstract: The present invention provides composition and methods of inhibiting quinone reductase 2 (QR2). The methods are useful in the treatment of malaria and autoimmune diseases. The compositions of the invention comprise quinoline and quinazoline derivatives. The invention also provides methods for inhibiting the activity of QR2 by contacting the enzyme with one or more compositions of the invention.

Abstract: The present invention provides novel derivatives of MTX. The novel derivatives have increased selectivity, inhibit the activity of Her2, EGFR, or B-Raf to a greater degree than MTX, and display greater antiproliferative activity than MTX. Also provided are pharmaceutical compositions containing the novel derivatives, to methods of preparation of such derivatives, to methods of inhibiting the biological activity of polypeptides, methods of inhibiting cell proliferation, and the use of the novel compounds in therapy, particularly for the treatment of neoplastic, hyperproliferative, and immune disorders, including cancer, arthritis, and psoriasis.

Abstract: Disclosed are compounds of formula A: and pharmaceutically acceptable salts thereof, wherein R1, R2, R2?, R3, R21, A1, A2, X, and Z are as defined herein. Compounds of formula A are useful in the treatment of diseases and/or conditions related to cell differentiation, such as cancer, inflammation, arthritis, angiogenesis, or the like. Also disclosed are pharmaceutical compositions comprising compounds of the invention and methods of treating the aforementioned conditions using such compounds.