摘要:
This description addresses fluorinated amine compounds meeting the general formula R′iArF—ER2, where ArF is a fluoroaryl group, E is nitrogen or phosphorous, each R is independently a C1-C20 hydrocarbyl group; or the two Rs may connect to form an unsubstituted or substituted C2-C20 cycloaliphatic group, R′ is a C1-C20 hydrocarbyl or halogenated hydrocarbyl, and i is 0, 1 or 2. These compounds may be protonated with strong Bronsted acids to form protonated amine compounds that are useful for the preparation of organometallic catalyst-cocatalyst compounds comprising noncoordinating or weakly coordinating anions. The resulting organometallic catalyst-cocatalyst complexes can be effectively used as olefin polymerization catalysts. High number-average molecular weight polymers at high rates of productivity were observed from the use of metallocene catalyst complexes prepared with [N-pentafluorophenyl pyrrolidinium][tetrakis(pentafluorophenyl)borate] of [N-pentafluorophenyl pyrrolidinium][chloride].
摘要:
A process for preparing 4-hydroxy carbazoles useful as intermediates for preparing compounds that are useful for inhibiting sPLA2 and novel intermediates.
摘要:
The present invention is to provide a compound of the formula: wherein the ring A is an optionally substituted 5- to 6-membered aromatic heterocyclic ring, the ring B an optionally substituted 5- to 6-membered aromatic homocyclic ring or an optionally substituted 5- to 6-membered aromatic heterocyclic ring, R1 is a hydrogen atom, a hydroxy group or a lower alkyl group, and n is 0 or 1, or a salt thereof, which is effective for the prevention or treatment of ischemic cardiac disease, etc., and which is useful as an agent for preventing or treating ischemic cardiac disease, etc. such as myocardial infarction, arrhythmia, etc.
摘要:
Compounds of Formula I wherein R1a, R1b, R2b, R3b, R3a, R2a, B1, B2, Z, A2 and A1 are as defined in the specification, enantiomers thereof, pharmaceutically-acceptable salts thereof, processes for preparing them, pharmaceutical compositions containing them and their use in therapy, especially for treatment of conditions associated with reductions in nicotinic transmission. Compounds of the invention enhance the efficacy of agonists at nicotinic receptors.
摘要:
For use in therapy a chemical compound of formula (I), wherein R1 to R3 are independently selected from hydrogen and alkyl; R4 to R7 are independently selected from hydrogen, halogen, hydroxy, alkyl, aryl, heterocyclyl, alkoxy, aryloxy, alkylthio, arylthio, alkylsulfoxyl, alkylsulfonyl, arylsulfoxyl, arylsulfonyl, amino, monoalkylamino, dialkylamino, nitro, cyano, carboxaldehyde, alkylcarbonyl, arylcarbonyl, aminocarbonyl, monoalkylaminocarbonyl, dialkylaminocarbonyl, alkoxycarbonylamino, aminocarbonyloxy, monoalkylaminocarbonyloxy, dialkylaminocarbonyloxy, monoalkylaminocarbonylamino and dialkylaminocarbonylamino, wherein at least one of R4 to R7 is a substituent group other than hydrogen, and pharmaceutically acceptable salts and prodrugs thereof, particularly for the treatment of disorders of the central nervous system; damage to the central nervous system; cardiovascular disorders; gastrointestinal disorders; diabetes insipidus, and sleep apnea, and especially for the treatment of obesity; chemical compounds of formula (I) other than compounds wherein R7 is hydroxy.
摘要:
Heterocyclic derivatives of the formula (I) wherein each symbol is as defined in the specification, pharmaceutically acceptable salts thereof and method of producing them. Pharmaceutical compositions containing the heterocyclic derivative or a pharmaceutically acceptable salt thereof, particularly, ACAT inhibitors and lipoperoxidation inhibitors. The heterocyclic derivatives and pharmaceutically acceptable salts thereof of the present invention show superior ACAT inhibitory activity and lipoperoxidation inhibitory activity, and are useful as ACAT inhibitors and hyperlipemia inhibitors. To be specific, they are useful for the prevention and treatment of arteriosclerotic lesions of arteriosclerosis, hyperlipemia and diabetes, as well as ischemic diseases of brain, heart and the like.
摘要:
This invention provides a series of substituted propanamines useful as tachykinin receptor antagonists. This invention also provides methods employing these substituted propanamines as well as pharmaceutical formulations comprising these compounds.