Zobrazeno 1 - 10
of 632
pro vyhledávání: '"Roland K. Robins"'
Autor:
Donald F Smee, Howard B Cottam, Brahma S Sharma, Ganesh D Kini, Ganapathi R Revankar, Emmanuel A Ojo-Amaize, Robert W Sidwell, Weldon B Jolley, Roland K Robins
Publikováno v:
Canadian Journal of Infectious Diseases, Vol 3, Iss Suppl B, Pp 41-48 (1992)
7-thia-8-oxoguanosine (TOGuo) is the first reported structure of a family of modified guanosine analogues exhibiting antiviral activity in rodent models. Its spectrum of action includes interferon-sensitive viruses such as alphaviruses, bunyaviruses,
Externí odkaz:
https://doaj.org/article/c4c9e5228dba4f8a9eceddc11c64aceb
Autor:
Robert W Sidwell, John H Huffman, Donald F Smee, John Gilbert, Roland K Robins, Meir Kende, John Huggins
Publikováno v:
Canadian Journal of Infectious Diseases, Vol 3, Iss Suppl B, Pp 49-54 (1992)
Biological response modifiers (BRMs) have particular promise when used in combination with more standard antiviral agents for treatment of viral diseases. Reported here are a series of studies which have used two BRMs in combination with the antivira
Externí odkaz:
https://doaj.org/article/df2fc1d85cfb417189d9bcf763b5dd03
Autor:
Daniel W. Miles, Michael W. Winkley, Morris J. Robins, Roland K. Robins, Henry Eyring, Warren H. Inskeep
Publikováno v:
International Journal of Quantum Chemistry. 3:129-145
The electronic structures and spectra of some simple nucleoside derivatives with the formal structure of cytosine nucleoside are presented. The experimental spectroscopic information is obtained from the circular dichroism and absorption spectra. The
Publikováno v:
Journal of Heterocyclic Chemistry. 28:1779-1788
Several disubstituted pyrazolo[3,4-d]pyrimidine, pyrazolo[1,5-a]pyrimidine and thiazolo[4,5-d]pyrimidine ribonucleosides have been prepared as congeners of uridine and cytidine. Glycosylation of the trimethylsilyl (TMS) derivative of pyrazolo[3,4-d]p
Publikováno v:
Journal of Medicinal Chemistry. 37:177-183
A number of N9-alkyl-substituted purines and purine ribonucleosides have been synthesized as congeners of sulfinosine and evaluated for their antileukemic activity in mice. NaH-mediated alkylation of 6-chloropurine (4) and 2-amino-6-chloropurine (5)
Autor:
Atsushi Takada, Chisa Ukawa, Tamaki Hirama, Howard B. Cottam, Roland K. Robins, Katsuhiko Nagahara, Shinji Sasaoka, Hiroko Kawano
Publikováno v:
Journal of Heterocyclic Chemistry. 31:239-243
A one-pot synthesis using 5-aminopyrazole derivatives 1 with ethoxymethylenemalononitrile (EMMN), ethyl ethoxymethylenecyanoacetate (EMCA) or diethyl ethoxymethylenemalonate (DEMM) gave pyrazolo-[1,5-a]pyrimidine compounds 2,4,8. Also, the one step r
Publikováno v:
Journal of medicinal chemistry. 10(3)
Autor:
Birendra K. Bhattacharya, Yogesh S. Sanghvi, T. Sudhakar Rao, Ganapathi R. Revankar, Arthur F. Lewis, Roland K. Robins
Publikováno v:
Journal of Heterocyclic Chemistry. 30:1341-1349
A number of N- and C-alkyl derivatives of selected guanine analogs have been synthesized as potential antiviral agents. n-Pentyl, n-hexyl and 6-hydroxyhexyl derivatives in the imidazo[1,2-α]-s-triazine, 9–11, imid-azo[1,2-α]pyrimidine, 13–17, a
Alkylpurines as immunopotentiating agents. Synthesis and antiviral activity of certain alkylguanines
Publikováno v:
Journal of Medicinal Chemistry. 36:3431-3436
Several simple 8-substituted 9-alkyl- and 7,8-disubstituted 9-alkylguanine derivatives were synthesized as potential antiviral agents. These were tested for antiviral protection against a lethal Semliki Forest virus (SFV) infection in mice, and their
Publikováno v:
ChemInform. 22
2-Amino-9-β-D-ribofuranosylpurine-2-sulfonamide (2-sulfamoyladenosine, 4), a congener of sulfonosine (3), was synthesized by four different routes. Acid catalyzed fusion of 6-chloropurine-2-sulfonyl fluoride (5) with 1,2,3,5-tetra-O-acetyl-β-D-ribo