Selective synthesis of sulfoxides and sulfones from sulfides using silica bromide as the heterogeneous promoter and hydrogen peroxide as the terminal oxidant
Chemoselective oxidation of sulfides to sulfoxides and sulfones. Heterogeneous promoter. Synthesis of sulfoxides and sulfones at room temperature.
选择性氧化亚硫醚为亚砜和砜。非均相催化剂。在室温下合成亚砜和砜。
Amide compounds and use thereof
申请人:——
公开号:US20030158413A1
公开(公告)日:2003-08-21
The present invention relates to an amide compound of the formula
1
wherein R
1
is a hydrogen and the like, R
2
is a hydrogen and the like, X is SO
2
and the like, Y is the formula (III) and the like and a is 2, an isomer thereof or pharmaceutically acceptable salts thereof. The compound of the present invention shows a remarkable and selective Rho kinase inhibitory action, is free of problematic toxicity, shows fine oral absorption and drug kinetics (absorption, distribution, metabolism, excretion and the like of the drug), and shows superior properties (e.g., stability etc.) as a compound. Accordingly, it can be used as a therapeutic drug for various diseases in which Rho kinase is involved.
Method for preparing sulfone or sulfoxide compound
申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:US20030171589A1
公开(公告)日:2003-09-11
There is provided a method for preparing a sulfone or sulfoxide compound, characterized in that a sulfide compound is allowed to react with hydrogen peroxide in the presence of a metal oxide catalyst formed by the reaction of hydrogen peroxide with at least one metal or metal compound selected from tungsten metal; molybdenum metal; a tungsten compound comprising tungsten and a Group IIIb, IVb, Vb, or VIb element exclusive of oxygen; and a molybdenum compound comprising molybdenum and a Group IIIb, IVb, Vb, or VIb element exclusive of oxygen.
The present invention refers to synthetic protease inhibitors having an axis of symmetry C
2
or pseudo-C
2
characterised by possessing, in the central portion: (1) preferably, a dihydroxyethylene function, which is isosteric with a peptidic bond; (2) a peptidemimetic bridge between the two nitrogens of the main chain and (3) radicals capable of mimetising amino acids. These new protease inhibitors are a base for the preparation of anti-viral formulations capable of inhibiting HIV virus proliferation.