Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Birendra K. Bhattacharya"'
Publikováno v:
Nucleosides and Nucleotides. 14:1269-1287
A convenient synthesis of N1-methyl-2′-deoxy-ψ-uridine (ψ-thymidine, ψT, 7a) has been accomplished in good yield. The structural conformation of 7a was derived by 2D NMR and 1D NOE experiments. The nucleoside 7a has been incorporated into G-rich
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d2a627a11690707d2474709ea9e7994
https://doi.org/10.1080/15257779508010690
https://doi.org/10.1080/15257779508010690
Publikováno v:
Nucleosides and Nucleotides. 14:45-63
A convenient synthesis of 1-(2-deoxy-β-D-erythro-pentofuranosyl)quinazoline-2,4(3H)-dione ( 6 ) has been accomplished. The structural conformation of ( 6 ) was derived by 2D NMR, COSY and NOESY experiments. Nucleoside ( 6 ) was incorporated into G-r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2446c0151810862821f2d6a55d07d779
https://doi.org/10.1080/15257779508014652
https://doi.org/10.1080/15257779508014652
Publikováno v:
J. Chem. Soc., Perkin Trans. 1. :1543-1550
A total synthesis of novel nucleosides 2′-deoxy-2′-arafluoro-tubercidin 12, -toyocamycin 23, -sangivamycin 24 and -thiosangivamycin 25 has been accomplished for the first time starting from 4-chloropyrrolo[2,3-d]pyrimidine 4, and 2-bromo-5-(ethox
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::777ee0304276797fd05c30aed9166e27
https://doi.org/10.1039/p19950001543
https://doi.org/10.1039/p19950001543
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23881034c0ae2f95fea62304bda55ebd
https://doi.org/10.1002/jhet.5570300527
https://doi.org/10.1002/jhet.5570300527
Publikováno v:
ChemInform. 26
Total synthesis of 2′-deoxy-2′-arafluoro analogues of toyocamycin 11, sangivamycin 12 and thiosangivamycin 13, starting from 5-bromo-2-ethoxymethyleneaminopyrrole-3,4-dicarbonitrile 4 has been accomplished for the first time.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eae74e20832f37e6d98ed306eb6d4345
https://doi.org/10.1002/chin.199523227
https://doi.org/10.1002/chin.199523227
Autor:
Ganapathi R. Revankar, Robert F. Rando, John H. Huffman, Joshua O. Ojwang, Birendra K. Bhattacharya
Publikováno v:
ChemInform. 27
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12e4818a27e4898ed731c6821e4ca8fd
https://doi.org/10.1002/chin.199604256
https://doi.org/10.1002/chin.199604256
Publikováno v:
Nucleosides and Nucleotides. 9:1021-1043
Methods are described for the synthesis of the α and β anomers of 7-D−ribofuranosylfuro[3,2-d]pyrimidines substituted at C-4 with either amino, oxo, thiono, or methylthio groups. The analogous 2,4-dithiono compounds are also described. The key st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2ae9a964b37d6ac48ee65c48d91e1cd
https://doi.org/10.1080/07328319008046060
https://doi.org/10.1080/07328319008046060
Publikováno v:
Journal of Heterocyclic Chemistry. 27:787-793
6-Amino-1-(β-D-ribofuranosyl)-1H-pyrazolo[3,4-d]-1,3-oxazin-4-one (4), an isostere of the nucleoside antibiotic oxanosine has been synthesized from ethyl 5-amino-1-(2,3-O-isopropylidene-β-D-ribofuranosyl)pyrazole-4-carboxylate (6). Treatment of 6 w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::442a27c041e4ac7a37f68b216c4f6030
https://doi.org/10.1002/jhet.5570270357
https://doi.org/10.1002/jhet.5570270357
Publikováno v:
Journal of Heterocyclic Chemistry. 27:795-801
A number of pyrazole ribonucleosides, structurally related to AICA riboside and ribavirin have been prepared and evaluated for their biological activity in vitro. Deisopropylidenation of 5-amino-1-(2,3-O-isopropylidene-β-D-ribofuranosyl)pyrazole-4-c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8dd3a8a26f2f3376ce33a9db8b2da254
https://doi.org/10.1002/jhet.5570270358
https://doi.org/10.1002/jhet.5570270358
Autor:
Steven B. Larson, Ganesh D. Kini, Roland K. Robins, Birendra K. Bhattacharya, Steven S. Matsumoto, Yogesh S. Sanghvi, Ganapathi R. Revankar, Weldon B. Jolley
Publikováno v:
Journal of Medicinal Chemistry. 33:336-344
A series of 1,2,3-triazole (2), pyrazole (3 and 5), and pyrrole (4) ribonucleosides with two adjacent carbamoyl groups have been synthesized and evaluated for cell growth inhibition and induction of cellular differentiation of HL-60 cells in culture.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d00fc1ad709e5c6f769c2185ffd81544
https://doi.org/10.1021/jm00163a054
https://doi.org/10.1021/jm00163a054