1350765-89-7Relevant academic research and scientific papers
PHOSPHORODIAMIDATE DERIVATIVES OF GUANOSINE NUCLEOSIDE COMPOUNDS FOR TREATMENT OF VIRAL INJECTIONS
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Page/Page column 73-74, (2012/04/23)
This invention is directed to novel compounds of formula (I) having the structure that are useful in the treatment of viral infections in mammals mediated, at least in part, by a virus in the Flaviviridae family of viruses. Methods of treating viral infec
Phosphorodiamidates as a promising new phosphate prodrug motif for antiviral drug discovery: Application to anti-HCV agents
McGuigan, Christopher,Madela, Karolina,Aljarah, Mohamed,Bourdin, Claire,Arrica, Maria,Barrett, Emma,Jones, Sarah,Kolykhalov, Alexander,Bleiman, Blair,Bryant, K. Dawn,Ganguly, Babita,Gorovits, Elena,Henson, Geoffrey,Hunley, Damound,Hutchins, Jeff,Muhammad, Jerry,Obikhod, Aleksandr,Patti, Joseph,Walters, C. Robin,Wang, Jin,Vernachio, John,Ramamurty, Changalvala V.S.,Battina, Srinivas K.,Chamberlain, Stanley
, p. 8632 - 8645 (2012/02/04)
We herein report phosphorodiamidates as a significant new phosphate prodrug motif. Sixty-seven phosphorodiamidates are reported of two 6-O-alkyl 2′-C-methyl guanosines, with significant variation in the diamidate structure. Both symmetrical and asymmetric phosphorodiamidates are reported, derived from various esterified amino acids, both D and L, and also from various simple amines. All of the compounds were evaluated versus hepatitis C virus in replicon assay, and nanomolar activity levels were observed. Many compounds were noncytotoxic at 100 μM, leading to high antiviral selectivities. The agents are stable in acidic, neutral, and moderately basic media and in selected biological media but show efficient processing by carboxypeptidases and efficiently yield the free nucleoside monophosphate in cells. On the basis of in vitro data, eight leads were selected for additional in vivo evaluation, with the intent of selecting one candidate for progression toward clinical studies. This phosphorodiamidate prodrug method may have broad application outside of HCV and antivirals as it offers many of the advantages of phosphoramidate ProTides but without the chirality issues present in most cases.
