摘要:
A method for synthesizing dissymmetric sulfoether includes the following step: a) under the condition of tetrabutylammonium halide catalysis, compounds having a structure of formula (I), compounds having a structure of formula (II) and salts having sulfur and oxygen are reacted in a solvent to give dissymmetric sulfoether having a structure of formula (III).
摘要:
A process is described for preparing 4-haloalkyl-3-mercapto-substituted 2-hydroxybenzoic acid derivatives of the general formula (I) by reaction of 4-thio-substituted β-keto esters of the formula (II) with alkoxyvinyl haloalkyl ketones of the formula (III) in the presence of a base. In the above formulae, X, R1, R2 and R3 are each hydrogen, halogen, alkyl, alkoxy and cycloalkyl.
摘要:
A Addition-fragmentation oligomers containing allylic disulfide groups are described. The oligomers may be added to polymerizable compositions to provide labile crosslinks that can cleave and reform during the polymerization process.
摘要:
Omega-3 lipid compounds of the general formula (I): wherein R1 and R2 are the same or different and may be selected from a group of substituents consisting of hydrogen, a hydroxy group, an alkyl group, a halogen atom, an alkoxy group, an acyloxy group, an acyl group, an alkenyl group, an alkynyl group, an aryl group, an alkylthio group, an alkoxycarbonyl group, a carboxy group, an alkylsulfinyl group, an alkylsulfonyl group, an amino group, and an alkylamino group; X represents a carboxylic acid or a derivative thereof, a carboxylate, a carboxylic anhydride or a carboxamide; and Y is a C6 to C22 alkene with two or more double bonds, having E and/or Z configuration, are disclosed. Also disclosed are pharmaceutical compositions and lipid compositions comprising such compounds, and to such compounds for use as medicaments in particular for the treatment of cardiovascular and metabolic diseases.
摘要:
A new metallo-β-lactamase inhibitor which acts as a medicament for inhibiting the inactivation of β-lactam antibiotics and recovering anti-bacterial activities is disclosed. The maleic acid derivatives having the general formula (I) have metallo-β-lactamase inhibiting activities. It is possible to recover the anti-bacterial activities of β-lactam antibiotics against metallo-β-lactamase producing bacteria by combining the compound of the general formula (I) with β-lactam antibiotics.
摘要:
Compounds of formula (I); wherein R1 and R2 are the same or different and may be selected from the group consisting of a hydrogen atom, a hydroxy group, an alkyl group, a halogen atom, an alkoxy group, an acyloxy group, an acyl group, an alkenyl group, an alkynyl group, an aryl group, an alkylthio group, an alkoxycarbonyl group, an alkylsulfinyl group, an alkylsulfonyl group, an amino group, and an alkylamino group; and X represents a carboxylic acid group, a carboxylate group, or a carboxamide group; or any pharmaceutically acceptable salt, solvate, complex or pro-drug thereof, with the provisos that the compound of formula (I) is not (all-Z)-4,7,10,13,16,19-docosahexaenoic acid (DHA), alpha-methyl-DHA, alpha-methyl DHA methyl ester, alpha-methyl-DHA ethyl ester or alpha-hydroxy DHA ethyl ester, are disclosed. A fatty acid composition and a pharmaceutical composition comprising such compounds are also disclosed. The use of such compounds as medicaments, in particular for the treatment of diabetes type 2, is also disclosed.
摘要:
Novel acetyloxymethyl esters are disclosed. Methods of treating an illness, including cancer, hemological disorders and inherited metabolic disorders, and treating or ameliorating other conditions using these compounds are also disclosed. The compounds are effective in the inhibition of histone deacetylase.
摘要:
Oil soluble compounds having the formula: ##STR1## wherein R and R.sup.1 are independently cyano, alkoxycarbonyl or together form a carbocycle or alkylcarbocycle and R.sup.2 and R.sup.3 are independently alkyl, alkenyl, hydroxyalkyl sulfurized alkyl, or alkoxycarbonylalkyl.The compound are useful as wear protectants or extreme pressure agents to enhance wear protection or extreme pressure properties in lubricating oils and greases.
摘要:
Odorless functional (co)polymers are prepared by polymerizing, for example via aqueous emulsion, bulk or organic solution polymerization, at least one olefinically unsaturated monomer, e.g., styrene, butadiene, a (meth)acrylate or a vinyl nitrile, in the presence of a molecular weight/crosslinking-regulating amount of a conjugated diene chain-transfer agent having the formula (1): ##STR1##
摘要:
Novel acrylic acid salts of formula ##STR1## wherein R represents a hydrogen or a halogen atom, a C.sub.1-4 alkyl, a C.sub.1-4 alkoxy or a nitro group,M represents a cation derived from bismuth, zinc or a pharmaceutically acceptable organic base,X represents an inorganic anion,n is an integer of from 0 to 2,m is an integer of from 1 to 3,p is 0 or 1, andr is an integer of from 0 to 6having cytoprotective and antiulcer activities are provided. A process is also described for the preparation of said compounds.