[EN] METHODS OF TREATING MEDICAL CONDITIONS AND INHIBITING LINE1 REVERSE TRANSCRIPTASE USING A SUBSTITUTED 4-FLUORO-2,5-DIHYDROFURANYL PHOSPHONIC ACID OR RELATED COMPOUND [FR] MÉTHODES DE TRAITEMENT D'ÉTATS MÉDICAUX ET D'INHIBITION DE LA TRANSCRIPTASE INVERSE DE LA LINE1 À L'AIDE D'UN ACIDE 4-FLUORO-2,5-DIHYDROFURANYLE PHOSPHONIQUE SUBSTITUÉ OU D'UN COMPOSÉ APPARENTÉ
摘要:
The invention provides methods and compositions for treating medical disorders, such as cancer, and inhibiting LINE1 reverse transcriptase and/or HERV-K reverse transcriptase using a substituted 4-fluoro-2,5-dihydrofuranyl phosphonic acid or related compound.
4-Amino-1-((2R,3S,4S,5R)-5-azido-3,4-dihydroxy-5-hydroxymethyl-tetrahydro-furan-2-yl)-
1
H-pyrimidin-2-one (I:R
1
=R
2
=R
3
=R
4
=H) and prodrugs thereof are hepatitis C(HCV) polymerase inhibitors. Also disclosed are compositions and methods for inhibiting HCV and treating HCV-mediated diseases, processes for making the compounds and synthetic intermediates employed in the process.
The present invention discloses compounds of formula (I) or (II), or pharmaceutically acceptable salts, esters, or prodrugs thereof:
which inhibit, preventing or treating abnormal cellular proliferation and/or a viral infection, particularly by HIV, HCV or HBV. Consequently, the compounds of the present invention interfere with the replication cycle of a virus and are also useful as antiviral agents, or interfere with host cellular biochemical process and are also useful as antiproliferative agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from viral infection and/or cell proliferation. The invention also relates to methods of treating a viral infection and/or cell proliferation in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The present invention relates to novel antiviral/anti-proliferative compounds represented herein above, pharmaceutical compositions comprising such compounds, and methods for the treatment or prophylaxis of viral infection in a subject in need of such therapy with said compounds.
Isolation, Synthesis, and Characterization of Impurities and Degradants from the Clofarabine Process
作者:Bruce G. Anderson、William E. Bauta、William R. Cantrell, Jr.、Tracy Engles、Dennis P. Lovett
DOI:10.1021/op800182x
日期:2008.11.21
process impurities and their subsequent isolation, synthesis, and characterization is described. Two isomeric process impurities resulting from N6-attachment of a fluoroarabinose to clofarabine were found. Clofarabine’s base degradation products, which were different from the process impurities, were also synthesized and characterized. These compounds resulted from modifications to the sugar moiety, the
Synthesis and biological activity of 2'-fluoro-2-halo derivatives of 9-.beta.-D-arabinofuranosyladenine
作者:John A. Montgomery、Anita T. Shortnacy-Fowler、Sarah D. Clayton、James M. Riordan、John A. Secrist
DOI:10.1021/jm00080a029
日期:1992.1
The synthesis of 2-halo-9-(2-deoxy-2-fluoro-beta-D-arabinofuranosyl)adenines (4b and 4d) by coupling the 2,6-dihalopurine with 3-acetyl-5-benzoyl-2-deoxy-2-fluoro-D-arabinofuranosyl bromide (2) followed by replacement of the 6-halogen with concomitant removal of the acyl blocking groups is described. 2-Fluoroadenine derivative 4g had to be prepared by the diazotization-fluorination of 2-aminoadenine
通过将2,6-二卤代嘌呤与3-乙酰基-5-苯甲酰基-2-脱氧偶合,合成2-卤代9-(2-脱氧-2-氟-β-D-阿拉伯呋喃糖基)ni啶(4b和4d)描述了-2-氟-D-阿拉伯呋喃糖基溴化物(2),然后取代6-卤素并同时去除了酰基保护基团。必须通过2-氨基腺嘌呤核苷4e的重氮化-氟化来制备2-氟鸟嘌呤衍生物4g。所有三种核苷均能使接种P388白血病的小鼠的寿命延长。当在白血病细胞植入后第1、5和9天每3h x 8给予化合物时,可获得最佳结果。通过4f脱乙酰基化并在4h脱氧后再去除5a的苯甲酰基制得的2',3'-二脱氧核苷5b在细胞培养中对HIV具有轻微的活性。
2'-Fluoronucleoside phosphonates as antiviral agents
申请人:Shi Junxing
公开号:US20070225249A1
公开(公告)日:2007-09-27
The present invention includes compounds and compositions of
R
-2′-fluoronucleoside phosphonates, as well as methods to treat HIV, HBV, HCV or abnormal cellular proliferation comprising administering said compounds or compositions.