摘要:
The present invention relates generally to compounds represented in Formula I, pharmaceutical compositions comprising them and methods of treating of diseases or disorders such as cancer.
摘要:
The present invention is directed to tertiary carbinamine compounds having substituted heterocycles, which are inhibitors of the beta-secretase enzyme, and 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.
摘要:
Compounds are provided which are useful as platelet ADP receptor inhibitors, for treating thrombosis and for reducing the likelihood and/or severity of a secondary ischemic event in a patient.
摘要:
A novel class of proton exchange membrane materials, sulfonated poly(phthalazinones), were prepared by modification of poly(phthalazinone). Sulfonation reactions were conducted at room temperature using mixtures of 95-98% concentrated sulfuric acid and 27-33% fuming sulfuric acid with different acid ratios in order to get SPPEK with degree of sulfonation (DS) in the range of 0.6 to 1.0. The presence of sulfonic acid groups was confirmed by FT-IR analysis, and the DS and structures were characterized by NMR. The introduction of sulfonic groups into the polymer chains led to an increase in the glass transition temperature and a decrease in the decomposition temperature. Membrane films were cast from solution in N,N-dimethylformamide or N,N-dimethylacetamide. Water uptakes and swelling ratios of the membrane films increased with DS and sulfonated polymers with DS>1.2 were water soluble at 80° C. Proton conductivity increased with DS and temperature up to 95° C., reaching 10−2S/Cm.
摘要:
Synthesis of a chemical compound having the formula A-B-C that may serve for applications such as drug delivery where A is a chemiluminescent, moiety, B is a photochromic moiety, and C is a biologically active moiety where A-B-C may serve as a prodrug. Novel synthetic methods of the present invention to form the prodrug comprised the steps of (1) forming a benzophenone, (2) forming a diaryl ethylene, (3) attaching a phthalimide moiety to at least one of the aryl groups of the ethylene to form a phthalimide-ethylene conjugate, (4) condensing two ethylene-phthalimide conjugates to form a phthalimide-pentadiene conjugate, (5) converting the phthalimide to the phthalhydrazide by reaction with hydrazine to form a carrier compound according to the present invention, and (6) reacting the carrier compound with an nucleophilic moiety of the drug to form the corresponding prodrug. Alternatively the carrier can be prepared by using the halo-substituted diaryl ethylene to make the corresponding cationic leuco dye-like compound with known methods. The cationic compound then is protected by reacting with a nucleophile and coupled with the aminophathalimide by palladium-catalyzed amination to form the protected phthalimide-pentadiene conjugate. The latter is refluxed with hydrazine to convert its phthalimide to the phthalhydrazide and acidified to give the carrier. An additional aspect of the present invention relates to the use of these compounds as antiviral agents for the treatment of viral infections such as HIV and as anticancer agents for the treatment of cancers such as bowel, lung, and breast cancer.
摘要:
A process for preparing a compound of formula I: 1 wherein G is methylene, ethylene, CONH, amino or a bond; R is H, phenyl or a (C1-4)alkyl group optionally substituted by phenyl; Cy is phenyl or a 5- or 6-membered heterocycle of the group consisting of pyrrole, imidazole, pyrazole, pyrrolidine, pyrroline, imidazoline, imidazolidine, pyrazolidine, pyrazoline, pyridine, pyrazine, pyrimidine, pyridazine, piperazine, piperidine, and triazine, the Cy residue being optionally substituted by one or more substituent(s) selected from the group consisting of keto, nitro, carboxy, fluorine, chlorine, bromine, or iodine; R1 is a (C1-6)alkyl or polyfluoro(C1-6)alkyl group; and R2 is aryl, aryl-(C1-10)-alkyl, (C4-7)cycloalkyl or (C4-7)heterocycle wherein the heteroatom is an oxygen atom.
摘要:
The present invention can be used in medical practice specifically in chemical and pharmaceutical production of medicinal agents capable of modulating the immune system. This invention essentially relates to a new medicinal preparation 5-amino-2,3-dihydrophthalazine-1,4-dione sodium salt having immunomodulatory, antiinflammatory, and antioxidant properties. The preparation is obtained from 3-nitro-phthalanhydride by consecutive isolation of intermediate and end products. The intermediate products include 5-nitro-2,3-dihydrophthalazine-1,4-dione and 5-amino-2,3-dihydrophthala2ine-1,4-dione. The reaction between 5-amino-2,3-dihydrophthalazine-1,4-dione and sodium hydroxide yields the target product, 5-animo-2,3-dihydrophthalazine-1,4-dione sodium salt. The method allows to produce the medicinal preparation with high pharmaceutical activity. It is provided an example of application of this preparation.
摘要:
This invention provides pyridazinone derivatives encompassed by the following the formula: 1 wherein, R1, R2, R3, R4, R5 and R7 represent a hydrogen atom and the like, and R6 represents a C1-C3 alkyl and the like. The pyridazinone derivatives have excellent herbicidal activity, therefore, they can be used as an active ingredient for herbicidal compositions and can be utilized in herbicidal method, which are also described.
摘要:
Substituted 1-arylphthalazine compositions with the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independentlya) H,b) HO,c) R.sup.11 O--,d) halogen,e) C1-C3-alkyl,f) CF.sub.3,g) R.sup.12 CO.sub.2 --, orh) R.sup.12 CONH--;R.sup.1 and R.sup.2, or R.sup.2 and R.sup.3, or R.sup.3 and R.sup.4 can be taken together to bea) --OCH.sub.2 O--, orb) --OCH.sub.2 CH.sub.2 O--;R.sup.5 isa) H,b) C1-C6-alkyl,c) C3-C6-alkenyl,d) C3-C6-alkynyl,e) C3-C6-cycloalkyl,f) phenyl or substituted phenyl, wherein the phenyl is substituted with one or two substituents selected from the group consisting of C1-C3-alky, halogen, R.sup.12 HN--, R.sup.12 O--, CF.sub.3 --, R.sup.13 SO.sub.2 -- and CO.sub.2 R.sup.12, org) phenyl-C1-C3-alkyl or substituted phenyl-C1-C3-alkyl, wherein the phenyl is substituted with one or two substituents selected from the group consisting of C1-C3-alkyl, halogen, R.sup.12 HN--, R.sup.12 O--, CF.sub.3 --, R.sup.13 SO.sub.2 -- and --CO.sub.2 R.sup.12 ;R.sup.6 isa) R.sup.10 R.sup.11 N--,b) R.sup.10 NHC(NH)--,c) R.sup.12 CONH--,d) 1-pyrrolidino ore) 1-piperidino;R.sup.7 is H;R.sup.8 and R.sup.9 are independentlya) H,b) C1-C3-alkyl,c) halogen,d) R.sup.12 O--,e) CF.sub.3 --, orf) --CO.sub.2 R.sup.12 ;R.sup.10 and R.sup.11 are independentlya) H,b) C1-C10-alkyl,c) C1-C6-perfluoroalkyl,d) C3-C10-alkenyl,e) C3-C10-alkynyl, orf) C3-C6-cycloalkyl;R.sup.12 is H or C1-C3-alkyl; andR.sup.13 is C1-C3-alkyl or CF.sub.3 ;and pharmaceutically acceptable salts thereof,