摘要:
The present invention provides nucleoside aryl phosphoramidates of structural formula (I) which are precursors to inhibitors of RNA-dependent RNA viral polymerase. These compounds are precursors to inhibitors of RNA-dependent RNA viral replication and are useful for the treatment of RNA-dependent RNA viral infection. They are particularly useful as precursors to inhibitors of hepatitis C virus (HCV) NS5B polymerase, as precursors to inhibitors of HCV replication, and/or for the treatment of hepatitis C infection. The invention also describes pharmaceutical compositions containing such nucleoside aryl phosphoramidates alone or in combination with other agents active against RNA-dependent RNA viral infection, in particular HCV infection. Also disclosed are methods of inhibiting RNA-dependent RNA polymerase, inhibiting RNA-dependent RNA viral replication, and/or treating RNA-dependent RNA viral infection with the nucleoside aryl phosphoramidates of the present invention.
摘要:
Disclosed herein are compounds of Formula (I) ##STR1## and pharmaceutically acceptable salts thereof which have been found useful in the treatment of nitric oxide synthase mediated diseases and disorders, including neurodegenerative disorders, disorders of gastrointestinal motility and inflammation. These disease and disorders include hypotension, septic shock, toxic shock syndrom, hemodialysis, IL-2 therapy such as in cancer patients, cachexia, immnunosuppression such as in transplant therapy, autoimmune and/or inflammatory indications including sunburn or psoriasis and respiratory conditions such as bronchitis, asthma, and acure respiratory distress (ARDS), myocarditis, heart failure, atherosclerosis, arthritis, rheumatoid arthritis, chronic or inflammatory bowel disease, ulcerative colitis, Crohn's disease, systemic lupus erythematosis (SLE), ocular conditions such as ocular hypertension and uveitis, type 1 diabetes, insulin-dependent diabetes mellitus and cystic fibrosis. Compounds of Formula I are also useful in the treatment of hypoxia, hyperbaric oxygen convulsions and toxicity, dementia, Sydenham's chorea, Parkinson's disease, Huntington's disease, amyotrophic lateral sclerosis, multiple sclerosis, Korsakoffs disease, imbecility related to cerebral vessel disorder, ischemic brain edema, sleeping disorders, schizophrenia, depression, PMS, anxiety, drug addiction, pain, migraine, immune complex disease, as immunosupressive agents and for preventing or reversing tolerance to opiates and diazepines.
摘要:
Cyclosporin analogs containing a MeAla or MeAbu residue at the 6-position of the cyclic undecapeptide have been discovered to sensitize multidrug resistant cells to certain chemotherapeutic agents. These cyclosporin analogs have also been shown to increase the sensitivity of cells already susceptible to the chemotherapeutic agents. In addition, these cyclosporin A analogs lack the nephrotoxic and immunosuppressive activity of cyclosporin A.
摘要:
Method for increasing resistance to gastro-intestinal irritation, and for the treatment of pain, fever, inflammation, arthritic conditions, asthma, allergic disorders, skin diseases, cardiovascular disorders, psoriasis, inflammatory bowel disease, glaucoma or other prostaglandin and/or leukotriene mediated diseases comprising the administration to a subject in need of such treatment, a non-toxic therapeutically effective amount of compound of formula I: ##STR1##
摘要:
Disclosed are specific dipeptidyl 4-0, 6-0-acyl-2-amino-2-deoxy-D-glucose derivatives which, either alone, or in combination with an anti-AIDS drug, e.g. azidothymidine, protect against opportunistic bacterial, fungal and viral infection in a human host immunocompromised by an AIDS-related virus, as well as help to suppress the AIDS-related virus itself.
摘要:
Disclosed is a chiral, total synthesis of thienamycin from D-glucose which proceeds via intermediates I, II and III to known aldehyde IV which is known to be useful in the total synthesis of thienamycin (V): ##STR1## wherein: R is lower alkyl having 1-6 carbon atoms or bi-valent alkyl having 2-6 carbon atoms which joins the two sulfur atoms; R.sup.1 is lower alkyl or aralkyl, such as benzyl and the like; and R.sup.2 is hydrogen or a removable protecting group, such as triorganosilyl wherein the organo groups are independently selected from lower alkyl, phenyl and phenylloweralkyl.
摘要:
2-Amino-2-deoxy-.beta.-D-glucopyranosyl-(1-4)-2-amino-2-deoxy-D-glucoses of the general structural formula: ##STR1## wherein R.sub.1 is hydrogen, alkyl (1-7C), substituted alkyl (1-7C), phenyl, substituted phenyl, benzyl, or substituted benzyl;R.sub.2 is alkyl, substituted alky, phenyl, or substituted phenyl and each R.sub.2 may be the same group or a different group;R.sub.3 is H or ##STR2## wherein R.sub.8 is H or lower alkyl (1-10C), and provided at least one of R.sub.3 is not H,R.sub.9 is H, or R.sub.9 -R.sub.10 together is --CH.sub.2 --CH.sub.2 --CH.sub.2 --;R.sub.10 is H, alkyl (L-7C), hydroxymethyl, mercaptomethyl, benzyl, or substituted benzyl;R.sub.11 and R.sub.12 each is carboxyl, esterified carboxyl (1-7C), amidated carboxyl, or mono- or di-alkyl- (1-3C) amidated carboxyl;R.sub.4 and R.sub.5 are the same or different and are H, aliphatic or aromatic acyl (2-21C) or substituted acyl (2-21C);when R.sub.8 is lower alkyl, the stereochemistry at asymmetric center I can be either D or L;when R.sub.10 is not H, the stereochemistry at asymmetric center II is L; the stereochemistry at asymmetric center III is D.These compounds possess immunostimulatory properties.
摘要翻译:2-氨基-2-脱氧-β-D-吡喃葡萄糖基 - (1-4)-2-氨基-2-脱氧-D-葡萄糖,其结构式如下:其中R1是氢,烷基(1-7C ),取代的烷基(1-7C),苯基,取代的苯基,苄基或取代的苄基; R 2是烷基,取代的烷基,苯基或取代的苯基,每个R 2可以是相同的基团或不同的基团; R 3是H或者其中R 8是H或低级烷基(1-10C),并且R 3中的至少一个不是H,R 9是H或R 9 -R 10一起是-CH 2 -CH 2 -CH 2 - ; R 10为H,烷基(L-7C),羟甲基,巯基甲基,苄基或取代的苄基; R11和R12各自为羧基,酯化羧基(1-7C),酰胺化羧基或单 - 或二 - 烷基 - (1-3C)酰胺化羧基; R 4和R 5相同或不同,为H,脂族或芳族酰基(2-21C)或取代的酰基(2-21C); 当R8是低级烷基时,不对称中心I的立体化学可以是D或L; 当R10不为H时,不对称中心II的立体化学为L; 不对称中心III的立体化学是D.这些化合物具有免疫刺激性质。
摘要:
Disclosed is methyl 3-azido-4-C-cyano-2,3,4,6-tetradeoxy-.alpha.-D-arabino-hexopyranoside and processes for its preparation from methyl 3-azido-2,3,6-trideoxy-.alpha.-D-arabino-hexopyranoside via the 4-bromo-4-deoxy intermediate; wherein the two inversions of configuration at C-4 result in a net retention of the .alpha.-D-arabino stereochemistry.
摘要:
The present invention provides nucleoside cyclic phosphoramidates of formula (I), pharmaceutical compositions comprising the compounds of formula (I) and methods of inhibiting RNA-dependent RNA polymerase, inhibiting RNA-dependent RNA viral replication, and/or treating RNA-dependent RNA viral infection using the compounds of formula (I).
摘要:
Compounds of formula (I), wherein: R.sup.1 is selected from the group consisting of hydrogen and methyl; R.sup.2 is selected from the group consisting of methyl and ethyl; R.sup.3 is selected from the group consisting of hydrogen and methyl; and the C1-C2 carbon-carbon bond may be a single or double bond. Such compounds are useful in the treatment of pathologic conditions that benefit from blockade of isozymes of 5.alpha.-reductase. ##STR1##