840506-40-3

Upstream product

• 5557-81-3 L-alanine benzyl ester hydrochloride 
• 772-79-2 4-chlorophenylphosphorodichloridate 
• 106-48-9 4-chloro-phenol 
• 22585-81-5 4-chlorophenylphosphonoyl dichloride 

Downstream Products

• 1186412-30-5 C₂₅H₂₇ClN₇O₉P 
• 1255860-43-5 C₂₇H₂₉ClN₃O₁₀P 

Relevant academic research and scientific papers

THIONUCLEOSIDE DERIVATIVE OR SALT THEREOF, AND PHARMACEUTICAL COMPOSITION

Disclosed are a compound and a pharmaceutical composition that exhibit an excellent drug efficacy against a tumor, in particular a tumor which has acquired resistance to gemcitabine. Specifically, provided is a thionucleoside derivative represented by General Formula [1] (in the formula, R1 represents a hydroxyl group which may be protected, a C1-20 alkoxy group which may be substituted, or the like; R2 represents a C1-20 alkoxy group which may be substituted, a C3-8 cycloalkoxy group which may be substituted, or the like; and R3 represents a hydrogen atom or the like); or a salt thereof. Further, provided is a pharmaceutical composition containing such a thionucleoside derivative or a salt thereof.

Antiviral phosphoramidates

The invention provides novel nucleoside compounds of formula I wherein R1, R2a, R2b, R3, R4, R5, R6, R8a, R9 and R10 are as defined herein which are useful for the treatment of Hepatitis C Virus (HCV) mediated diseases. The invention further provides methods for treatment or prophylaxis of HCV mediated diseases with compounds of formula I and pharmaceutical compositions comprising these compounds,

PHOSPHORAMIDATE PRODRUGS FOR TREATMENT OF VIRAL INFECTION

The invention concerns 2'-methyl ribonucleotide phosphoramidates which are neutral prodrugs which are converted in vivo to 2'- methyl ribonucleotide triphosphates. These compounds are useful in the treatment of viral infection. Of particular interest are prodrugs of a methylsulfonylhydrazinyl purine 2'-methyl nucleotide triphosphate: 2'methyl- N6-alkyl-N6- (N-methylsulfonamide) adenosine triphosphate and its 2-amino derivative.

CHEMICAL COMPOUNDS

Phosphoramidate derivatives of nucleotides and their use in the treatment of cancer are described. The base moieties of, for example, each of deoxyuridine, cytarabine, gemcitabine and citidine may be substituted at the 5-position. The phosphoramidate moiety has attached to the P atom an aryl-O moiety and an α-amino acid moiety. The α-amino acid moiety may correspond to or be derived from either a naturally occurring or a non-naturally occurring amino acid.

Anti-cancer ProTides: Tuning the activity of BVDU phosphoramidates related to thymectacin

Based on our wide ranging knowledge of phosphoramidate ProTides as anti-viral agents we have tuned the lead anti-cancer agent thymectacin in the ester and amino acid regions and revealed a substantial enhancement in in vitro potency versus colon and prostate cancer cell lines. Twelve analogues have been reported, with yields of 29-78%. The compounds are fully characterised and data clearly reveal the presence of two phosphate diastereoisomers, as expected, in roughly equi-molar proportions. The compounds were evaluated in tissue culture versus three different tumour cell lines, using thymectacin as the control. It is notable that minor structural modification of the parent phenyl methoxyalaninyl structure of thymectacin leads to significant enhancements in potency. In particular, replacement of the methyl ester moiety in the lead by a benzyl ester gave a 175-fold boost in potency versus colon cancer HT115. This derivative emerges as a low micromolar inhibitor of HT115 cells and a new lead for further optimisation.