摘要:
(-)-4-Amino-1-(2-hydroxymethyl-1,3-oxathiolan-5-yl)-(1H)-pyrimidin-2-one, its pharmaceutically acceptable derivatives, pharmaceutical formulations thereof, methods for its preparation and its use as an antiviral agent are described.
摘要:
The present invention relates to heterocyclic compounds, more particularly naphthyridine compounds having antiviral activity. In particular, compounds of formula (I) wherein B, W, X, Y, R1, R2, R3, R4, and n are as defined herein, are useful in the therapy and prophylaxis of cytomegalovirus (CMV) infection in mammals.
摘要:
Thioacylating reagents are provided for the introduction of thioamide bonds into growing peptides represented by structure (I), where the substituents are disclosed herein. Intermediate precursors for preparing these thioacylating reagents are also provided. A process for preparing the thioacylating reagents and the intermediate precursors is further provided. Thiopeptides, and salts thereof, that exhibit pharmacological utility are provided and are represented by formula (II), wherein R?1, R3, R4¿, X and n are as defined herein. Methods for preparing these thiopeptides from solution and solid phase syntheses, utilizing the thioacylating reagents disclosed herein, are also provided.
wherein R₁ is hydrogen; R₂ is a purine or pyrimidine base or an analogue or derivative thereof; Z is S, S=O or SO₂; and pharmaceutically acceptable derivatives thereof. Also described are use of the compounds as antiviral agents, pharmaceutical formulations, and methods for the preparation of the compounds.
摘要:
Use of a compound of formula (I) or a pharmaceutically acceptable derivative thereof in the manufacture of a medicament for the treatment of hepatitis B is disclosed.
摘要:
New, small and structurally simple immunomodulating oligopeptides are disclosed. The oligopeptides of this invention possess a long, lipophilic alkyl chain. These immunododulating oligopeptides can be used in conjunction with anti-viral or anti-cancer agents in the treatment of human and animal diseases. Processes for the syntheses of immunomodulating chemicals are also disclosed.
摘要:
Disclosed are compounds of the formula wherein R₁ is hydrogen; R₂ is a purine or pyrimidine base or an analogue or derivative thereof; Z is S, S=O or SO₂; and pharmaceutically acceptable derivatives thereof. Also described are use of the compounds as antiviral agents, pharmaceutical formulations, and methods for the preparation of the compounds.
摘要:
The present invention comprises novel compounds that are effective inhibitors of integrins, particularly αIIbβ3 or αv integrins such as αvβ3 and αvβ5. The present invention, according to one embodiment, comprises a compound of formula (I) or formula (II), or a pharmaceutically acceptable salt, solvate, or metabolic precursor thereof. Wherein R1, R2, R3 and R4 are as defined herein.
摘要:
The present invention relates to methods and compositions for preparing biologically important nucleoside analogues containing 1,3-dioxolane sugar rings. In particular, this invention relates to the stereoselective synthesis of the beta (cis) isomer by glycosylating the base with an intermediate of formula (II) below a temperature of about -10 °C, wherein R1 and L are as defined herein.
摘要:
The present invention relates to a process for producing predominantly pure cis nucleoside analogues using a novel bicyclic intermediate of formula (III), wherein X is S, or O; Y is S, CH2, O or CH(R); wherein R is azido or halogen; and Z is S or O.