摘要:
Catalysts containing ruthenium and palladium for the hydrogenation of aromatic amines to cycloaliphatic amines. Methods for making and using the catalysts.
摘要:
Nonsteroidal antiinflammatory drugs which have been substituted with a nitrogen monoxide group; compositions comprising (i) a nonsteroidal antiinflammatory drug, which can optionally be substituted with a nitrogen monoxide group and (ii) a compound that directly donates, transfers or releases a nitrogen monoxide group (preferably as a charged species, particularly nitrosonium); and methods of treatment of inflammation, pain, gastrointestinal lesions and/or fever using the compositions are disclosed. The compounds and compositions protect against the gastrointestinal, renal and other toxicities that are otherwise induced by nonsteroidal antiinflammatory drugs.
摘要:
Disclosed is a process for producing a 4-nitrosodiphenylamine of the formula (2) ##STR1## wherein R.sub.1 and R.sub.2 independently represent hydrogen atom, methyl group, ethyl group, cyclohexyl group, methoxy group, ethoxy group or chlorine or bromine atom, or a salt thereof, comprising treating a diphenylamine represented by the formula (1) ##STR2## wherein R.sub.1 and R.sub.2 are as defined above with (i) a mixture of nitrogen oxides, (ii) a hydrogen halide and (iii) an aliphatic alcohol, wherein the atomic ratio of oxygen to nitrogen of the mixture of nitrogen oxides is more than 1.0 and less than 2.0. This process produces 4-nitrosodiphenylamine of the formula (2) or a salt thereof conveniently and effectively, and is industrially advantageous.
摘要:
In the process of subjecting a compound selected from phenols, N,N-dialkylanilines and mixtures thereof to nitrosation reaction conditions using a nitrite in an aqueous system to prepare nitrosated products selected from benzoquinone oximes and p-nitroso-N,N-dialkylanilines, the nitrosation reaction is advantageously carried out in the presence of an acid stronger than nitrous acid an organic acid of pKa 2 to pKa 5 or a salt thereof and water, the quantities of the organic acid and water being up to 5 times by mole and up to 10 times by weight the quantity of the compound to be nitrosated, respectively.
摘要:
Novel stilbenoid compounds and their prodrug forms are disclosed, which serve as potent vascular targeting agents useful for the treatment of solid tumor cancers and other diseases associated with unwanted neovascularization. The novel stilbenoid compounds are tubulin-binding stilbenoid analogs structurally related to combretastatin A-1 and combretastatin A-4. The prodrug forms serve as potent vascular targeting agents (VTAs) useful for the treatment of solid tumor cancers and diseases associated with retinal neovascularization.
摘要:
Methods of producing aminonitrobenzoic acids are disclosed. A dinitrobenzoic acid may be reduced to an aminonitrobenzoic acid. In some specific embodiments, 2,6-initrobenzoic acid may be converted to 2-amino-6-nitrobenzoic acid. An end product may be used as an intermediate in the manufacture of various compounds including agricultural chemicals and pharmaceuticals.
摘要:
Stable ultrapure colchicine compositions comprising ultrapure colchicine and a pharmaceutically acceptable excipient are described. The compositions can be tablets. Methods for preparing such compositions and methods of use are also disclosed. Methods of treating gout flares with colchicine compositions are also disclosed.