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For: Zou RM, Beylin VG, Groziak MP, Wotring LL, Townsend LB. Synthetic approaches to the guanosine and xanthosine analogues 5-amino-3-beta-D-ribofuranosylpyrazolo[3,4-e][1,3]oxazin-7-one and 3-beta-D-ribofuranosylpyrazolo[3,4-e][1,3]oxazine-5,7-dione and studies of their antitumor potential. J Med Chem 1991;34:1951-9. [PMID: 2066967 DOI: 10.1021/jm00111a005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]

For:	Zou RM, Beylin VG, Groziak MP, Wotring LL, Townsend LB. Synthetic approaches to the guanosine and xanthosine analogues 5-amino-3-beta-D-ribofuranosylpyrazolo[3,4-e][1,3]oxazin-7-one and 3-beta-D-ribofuranosylpyrazolo[3,4-e][1,3]oxazine-5,7-dione and studies of their antitumor potential. J Med Chem 1991;34:1951-9. [PMID: 2066967 DOI: 10.1021/jm00111a005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]

Number	Cited by Other Article(s)
1	Inhibitory Activities of Pyrazolo-Oxazine Heterocyclic Derivatives. Mini Rev Med Chem 2021;22:1256-1267. [PMID: 34967287 DOI: 10.2174/1389557522666211229114446] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/05/2021] [Accepted: 09/10/2021] [Indexed: 11/22/2022] Abstract Despite several reports and reviews addressing the biological significance of pyrazoles and oxazines, no comprehensive work on the pyrazolo oxazine fused ring system has been published so far.We report all biological evaluations on pyrazolo-oxazine derivatives in this mini-review to provide an avenue for medicinal and pharmacological researchers to conduct further in-depth exploration. Collapse Key Words Pyrazolo-oxazine analgesic activity anti-hepatitis (HCV) anticancer antimicrobial inhibitory activity Collapse MESH Headings Collapse Grants Collapse Affiliation(s) Collapse
2	Heteroannulation Routes to Bioactive Pyrazolooxazines. CURR ORG CHEM 2020. [DOI: 10.2174/1570179417999200628035124] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Abstract Pyrazolo-oxazine fused systems are interesting classes of heterocyclic compounds exhibiting pronounced biological applications such as anticancer, antitubercular, anti-inflammatory, antibacterial and antifungal activities as well as inhibiting COX-1 and COX-2 enzymes. Depending on the distribution position of the heteroatoms (N and O), there are fourteen different systems of pyrazolo-oxazine. Nine of them were biologically abundant in literature, for example, pyrazolo[3,4-e][1,3]oxazines are used as analogs of antibiotics Formycin, Formycin B, Oxoformycin B. This review article summarizes the concerted efforts expended on most of the synthetic routes to the various types of pyrazolo-oxazines in the literature until the first quarter of 2020. The reactions of pyrazolo-oxazines with various reagents are also outlined. Collapse Key Words Collapse MESH Headings Collapse Grants Collapse Affiliation(s) Collapse
3	New trends in synthesis of pyrazole nucleosides as new antimetabolites. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2005;24:1227-47. [PMID: 16270665 DOI: 10.1081/ncn-200067421] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Abstract Pyrazole nucleosides and condensed pyrazole nucleosides exhibit various biological activities. This article describes recent synthetic approaches to their preparation, chemical properties, biological activities, and structure-activity relationships, with emphasis to selected drugs or drug candidates. Two pyrazole C-nucleoside compounds pyrazofurin (pyrazomycin) and its alpha-epimer pyrazofurin B are active components of potent antivirals approved for therapeutic use in human medicine aimed against various diseases caused by DNA viruses. Collapse Key Words Collapse MESH Headings Amides Antimetabolites/chemical synthesis Antimetabolites/chemistry Antimetabolites/therapeutic use Antiviral Agents/chemical synthesis Antiviral Agents/chemistry Antiviral Agents/therapeutic use DNA Viruses Pyrazoles/chemical synthesis Pyrazoles/chemistry Pyrazoles/therapeutic use Ribonucleosides/chemical synthesis Ribonucleosides/chemistry Ribonucleosides/therapeutic use Ribose Structure-Activity Relationship Virus Diseases/drug therapy Collapse Grants Collapse Affiliation(s) Collapse
4	The Chemistry of C-Nucleosides and Their Analogs II: C-Nucleosides of Condensed Heterocyclic Bases. ADVANCES IN HETEROCYCLIC CHEMISTRY 1997. [DOI: 10.1016/s0065-2725(08)60931-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2023] Abstract Collapse Key Words Collapse MESH Headings Collapse Grants Collapse Affiliation(s) Collapse