摘要:
2'-Deoxy-2'-fluoro-.beta.-D-arabinofuranosyl nucleosides of the following structure are disclosed: ##STR1## wherein X and Y are the same or different and are hydrogen, OR.sup.3, SR.sup.3, NR.sup.3 R.sup.4 or NHacyl wherein R.sup.3 and R.sup.4 are the same or different and are hydrogen, lower alkyl of 1 to 7 carbon atoms, aralky, or aryl;NHacyl is alkanoyl or aroylamide;R.sup.1 and R.sup.2 are the same or different and are hydrogen, acyl or aroyl.
摘要翻译:公开了以下结构的2'-脱氧-2'-氟-β-D-阿拉伯呋喃糖基核苷:其中X和Y相同或不同并且是氢,OR 3,SR 3,NR 3 R 4或NH-酰基,其中R 3和 R 4相同或不同,为氢,1至7个碳原子的低级烷基,芳烷基或芳基; 氨酰基是烷酰基或芳酰胺; R 1和R 2相同或不同,为氢,酰基或芳酰基。
摘要:
The present invention relates to 2′-Fluoro-6′-methylene carbocyclic nucleosides, pharmaceutical compositions containing these nucleosides and their use in the treatment or prophylaxis of a number of viral infections and secondary disease states and conditions thereof, especially including Hepatitis B virus (HBV) and secondary disease states and conditions thereof (cirrhosis and liver cancer), Hepatitis C virus (HCV), Herpes Simplex virus I and II (HSV-1 and HSV-2), cytomegalovirus (CMV), Varicella-Zoster Virus (VZV) and Epstein Barr virus (EBV) and secondary cancers which occur thereof (lymphoma, nasopharyngeal cancer, including drug resistant (especially including lamivudine and/or adefovir resistant) and other mutant forms of these viruses.
摘要:
A class of 2′-fluoro-nucleoside compounds are disclosed which are useful in the treatment of hepatitis B infection, hepatitis C infection, HIV and abnormal cellular proliferation, including tumors and cancer. The compounds have the general formulae: wherein Base is a purine or pyrimidine base; R1 is OH, H, OR3, N3, CN, halogen, including F, or CF3, lower alkyl, amino, loweralkylamino, di(lower)alkylamino, or alkoxy, and base refers to a purine or pyrimidine base; R2 is H, phosphate, including monophosphate, diphosphate, triphosphate, or a stabilized phosphate prodrug; acyl, or other pharmaceutically acceptable leaving group which when administered in vivo, is capable of providing a compound wherein R2 is H or phosphate; sulfonate ester including alkyl or arylalkyl sulfonyl including methanesulfonyl, benzyl, wherein the phenyl group is optionally substituted with one or more substituents as described in the definition of aryl given above, a lipid, an amino acid, peptide, or cholesterol; and R3 is acyl, alkyl, phosphate, or other pharmaceutically acceptable leaving group which when administered in vivo, is capable of being cleaved to the parent compound, or a pharmaceutically acceptable salt thereof.
摘要翻译:公开了一类可用于治疗乙型肝炎感染,丙型肝炎感染,HIV和异常细胞增殖(包括肿瘤和癌症)的2'-氟 - 核苷化合物。 所述化合物具有以下通式:其中碱是嘌呤或嘧啶碱; R 1是OH,H,OR 3,N 3,CN,卤素,包括F或CF 3 N ,低级烷基,氨基,低级烷基氨基,二(低级)烷基氨基或烷氧基,碱是指嘌呤或嘧啶碱基; R 2是H,磷酸盐,包括单磷酸盐,二磷酸盐,三磷酸盐或稳定化的磷酸盐前药; 酰基或其它药学上可接受的离去基团,其当在体内施用时能够提供其中R 2是H或磷酸酯的化合物; 磺酸酯,包括烷基或芳基烷基磺酰基,包括甲磺酰基,苄基,其中苯基任选被一个或多个取代基取代,如上述芳基定义中所述,脂质,氨基酸,肽或胆固醇; 并且R 3是酰基,烷基,磷酸酯或其它药学上可接受的离去基团,当其在体内施用时,其能够被切割成母体化合物或其药学上可接受的盐。
摘要:
A class of 2′-fluoro-nucleoside compounds are disclosed which are useful in the treatment of hepatitis B infection, hepatitis C infection, HIV and abnormal cellular proliferation, including tumors and cancer. The compounds have the general formulae: wherein Base is a purine or pyrimidine base; R1 is OH, H, OR3, N3, CN, halogen, including F, or CF3, lower alkyl, amino, loweralkylamino, di(lower)alkylamino, or alkoxy, and base refers to a purine or pyrimidine base; R2 is H, phosphate, including monophosphate, diphosphate, triphosphate, or a stabilized phosphate prodrug; acyl, or other pharmaceutically acceptable leaving group which when administered in vivo, is capable of providing a compound wherein R2 is H or phosphate; sulfonate ester including alkyl or arylalkyl sulfonyl including methanesulfonyl, benzyl, wherein the phenyl group is optionally substituted with one or more substituents as described in the definition of aryl given above, a lipid, an amino acid, peptide, or cholesterol; and R3 is acyl, alkyl, phosphate, or other pharmaceutically acceptable leaving group which when administered in vivo, is capable of being cleaved to the parent compound, or a pharmaceutically acceptable salt thereof.
摘要翻译:公开了一类可用于治疗乙型肝炎感染,丙型肝炎感染,HIV和异常细胞增殖(包括肿瘤和癌症)的2'-氟 - 核苷化合物。 所述化合物具有以下通式:其中碱是嘌呤或嘧啶碱; R 1是OH,H,OR 3,N 3,CN,卤素,包括F或CF 3 N ,低级烷基,氨基,低级烷基氨基,二(低级)烷基氨基或烷氧基,碱是指嘌呤或嘧啶碱基; R 2是H,磷酸盐,包括单磷酸盐,二磷酸盐,三磷酸盐或稳定化的磷酸盐前药; 酰基或其它药学上可接受的离去基团,其当在体内施用时能够提供其中R 2是H或磷酸酯的化合物; 磺酸酯,包括烷基或芳基烷基磺酰基,包括甲磺酰基,苄基,其中苯基任选被一个或多个取代基取代,如上述芳基定义中所述,脂质,氨基酸,肽或胆固醇; 并且R 3是酰基,烷基,磷酸酯或其它药学上可接受的离去基团,当其在体内施用时,其能够被切割成母体化合物或其药学上可接受的盐。
摘要:
Pharmaceutical prodrug compositions are provided comprising azide derivatives of drugs which are capable of being converted to the drug in vivo. Azide derivatives of drugs having amine, ketone and hydroxy substituents are converted in vivo to the corresponding drugs, increasing the half-life of the drugs. In addition azide prodrugs are often better able to penetrate the blood-brain barrier than the corresponding drugs. Especially useful are azide derivatives of cordycepin, 2′-F-ara-ddI, AraA, acyclovir, penciclovir and related drugs. Useful azide prodrugs are azide derivatives of therapeutic alicyclic amines, ketones, and hydroxy-substituted compounds, including aralkyl, heterocyclic aralkyl, and cyclic aliphatic compounds, where the amine or oxygen moiety is on the ring, or where the amine or oxygen moiety is on an aliphatic side chain, as well as therapeutic purines and pyrimidines, nucleoside analogs and phosphorylated nucleoside analogs.
摘要:
A method and composition for the treatment of humans infected with HIV that includes the administration of an HIV treatment amount of an enantiomerically pure .beta.-D-dioxolanyl purine nucleoside of the formula: ##STR1## wherein R is OH, Cl, NH.sub.2, or H, or a pharmaceutically acceptable salt or derivative of the compound, optionally in a pharmaceutically acceptable carrier or diluent.
摘要:
A method is provided for the synthesis of synthesis of acyclic purine nucleosides, particularly 9-(2-hydroxyethoxymethyl)-guanine (acyclovir) and 9-[(1,3-dihydroxy-2-propoxy)methyl]guanine ("DHPG") where the N.sup.2,N.sup.9 -diprotected guanine is reacted with CH.sub.3 C(O)OCH.sub.2 O(CH.sub.2).sub.2)OC(O)CH.sub.3 or diacetoxypropane, respectively, in the presence of a mixture of an acid and acetic anhydride, or in the presence of an acid, where the acid can be phosphoric acid or polyphosphoric acid.
摘要:
An asymmetric process for the preparation of enantiomerically pure .beta.-L-(-)-1,3-oxathiolane-nucleosides that includes the initial preparation of the key chiral intermediates (2R,5R) and (2R,5S)-5-(O-protected)-2-(protected-oxymethyl)-1,3-oxathiolane from 1,6-thioanhydro-L-gulose. The 2R,5(R,S)-5-(O-protected)-2-(protected-oxymethyl)-1,3-oxathiolane is condensed with a desired heterocyclic base, typically a purine or pyrimidine base, to provide the product nucleoside. The synthesis can be used to prepare the pharmaceutically important compound, .beta.-L-(-)-1-[(2.beta.,4.beta.)-2-(hydroxymethyl)-4-(1,3-thioxolane)]cytosine (.beta.-L-(-)BCH-189).
摘要:
A pharmaceutical composition in dosage unit form comprising a therapeutically effective HIV inhibitory amount of a compound having the formula: ##STR1## wherein R.sup.1 is selected from the group consisting of OH, C.sub.1-4 acyl, sulfate phosphate, and amino; R.sup.2 is O or NH, and R.sup.3 C or N, or a pharmacologically acceptable acid addition salt thereof, in association with a pharmaceutical carrier.
摘要:
A general method of synthesis of 2',3'-dideoxynucleosides which is efficient, inexpensive and based on a readily available starting material, D-mannitol.