Abstract:
The present invention relates to aryl linked imidazole and triazole derivatives, compositions comprising said compounds, alone or in combination with other drugs, and methods of using the compounds for improving the pharmacokinetics of a drug. The compounds of the invention are useful in human and veterinary medicine for inhibiting CYP3A4 and for improving the pharmacokinetics of a therapeutic compound that is metabolized by CYP3A4.
Abstract:
The present invention relates to compounds of formula (I) that are useful as hepatitis C virus (HCV) NS5A inhibitors, the synthesis of such compounds, and the use of such compounds for inhibiting HCV NS5A activity, for treating or preventing HCV infections and for inhibiting HCV viral replication and/or viral production in a cell-based system.
Abstract:
The present invention relates to novel Fused Tetracycle Derivatives of Formula (I): and pharmaceutically acceptable salts thereof, wherein A, A′, B, G, R1, U, V, W, W′, X, X′, Y and Y′ are as defined herein. The present invention also relates to compositions comprising at least one Fused Tetracycle Derivative, and methods of using the Fused Tetracycle Derivatives for treating or preventing HCV infection in a patient.
Abstract:
The invention provides compounds for selectively inhibiting glycosidases, prodrugs of the compounds, and pharmaceutical compositions including the compounds or prodrugs of the compounds. The invention also provides methods of treating diseases and disorders related to deficiency or overexpression of O-GlcNAcase, accumulation or deficiency of O-GlcNAc.
Abstract:
The present invention is directed to phenyl carboxamide compounds which are inhibitors of the beta-secretase enzyme and that are useful in the treatment of diseases in which the beta-secretase enzyme is involved, such as Alzheimer's disease. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the treatment of such diseases in which the beta-secretase enzyme is involved.
Abstract:
The present invention is directed to aminomethyl compounds which are inhibitors of the beta-secretase enzyme and that are useful in the treatment of diseases in which the beta-secretase enzyme is involved, such as Alzheimer's disease. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the treatment of such diseases in which the beta-secretase enzyme is involved.
Abstract:
The present invention is directed to compounds of formula I which are inhibitors of the beta-secretase enzyme and that are useful in the treatment or prevention of diseases in which the beta-secretase enzyme is involved, such as Alzheimer's disease. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which the beta-secretase enzyme is involved
Abstract:
Substituted analoguss of camptothecin possessing cytotoxic activity towards cancer cells, of the general structure: ##STR1## wherein E is H, CO.sub.2 R, CONH.sub.2, CONHR, CONR.sub.2, acyl, or CN; X is H OH, or OR; R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are independently the same or different and are H, or a linear or branched chain alkyl, alkylaryl, or hydroxyalkyl group, or an aryl group; R.sup.5, R.sup.6, R.sup.7, R.sup.8, and R.sup.9 are independently the same or different and are H, or a linear or branched chain alkyl, alkylaryl, alkoxy, hydroxyalkyl, or aminoalkoxy group, or an aryl or aryloxy group, or a C-glycal, or CO.sub.2 R, nitro, cyano, Cl, F, Br, I, SR.sup.10, NR.sup.11 R.sup.12, or OR.sup.13 ; R is H, or a linear or branched chain alkyl, alkylaryl, or hydroxyalkyl group, or an aryl group; R.sup.10, R.sup.11 and R.sup.12 are independently the same or different and are H, or a linear or branched chain alkyl, alkylaryl, hydroxyalkyl, or acyl group, or an aryl group; R.sup.13 is glycosyl; n is 0 or 1; with the proviso that when R.sup. 1 is ethyl, and n is 0, E, R.sup.2, R.sup.3, and R.sup.4 are not all H. Intermediate compounds leading to the camptothecin analogues comprise substituted tricyclic compounds which consist of rings C, D, and E fused together. Methods for preparing the analoguss involve condensation of such intermediates with variably substituted protected .alpha.-aminobenzaldehydes.
Abstract translation:具有一般结构的具有对癌细胞的细胞毒性活性的喜树碱的取代类似物:其中E是H,CO 2 R,CONH 2,CONHR,CONR 2,酰基或CN; X是H OH或OR; R 1,R 2,R 3和R 4独立地相同或不同,为H,或直链或支链烷基,烷基芳基或羟烷基或芳基; R 5,R 6,R 7,R 8和R 9独立地相同或不同,为H,或直链或支链烷基,烷基芳基,烷氧基,羟基烷基或氨基烷氧基,或芳基或芳氧基或C- ,或CO 2 R,硝基,氰基,Cl,F,Br,I,SR10,NR 11 R 12或OR 13; R为H或直链或支链烷基,烷基芳基或羟烷基或芳基; R 10,R 11和R 12独立地相同或不同,为H,或直链或支链烷基,烷基芳基,羟基烷基或酰基或芳基; R13是糖基; n为0或1; 条件是当R 1为乙基且n为0时,E,R 2,R 3和R 4不全为H.导致喜树碱类似物的中间体化合物包括取代的三环化合物,其由环C,D和E稠合 一起。 制备类似物的方法涉及这种中间体与可变取代的保护的α-氨基苯甲醛的缩合。
Abstract:
The present invention relates to novel Fused Tetracycle Derivatives of Formula (I): and pharmaceutically acceptable salts thereof, wherein A, A′, B, G, R1, U, V, W, W′, X, X′, Y and Y′ are as defined herein. The present invention also relates to compositions comprising at least one Fused Tetracycle Derivative, and methods of using the Fused Tetracycle Derivatives for treating or preventing HCV infection in a patient.
Abstract:
The invention provides compounds for selectively inhibiting glycosidases, prodrugs of the compounds, and pharmaceutical compositions including the compounds or prodrugs of the compounds. The invention also provides methods of treating diseases and disorders related to deficiency or overexpression of O-GlcNAcase, accumulation or deficiency of O-GlcNAc.