摘要:
The present invention relates to a thrombin receptor antagonist containing a compound represented by the formula (I) wherein R1a, R1b and R2 are each a hydrogen atom, an optionally substituted hydrocarbon group, an optionally substituted heterocyclic group, or an optionally substituted alkoxy, R3 is a group represented by the formula —NHCOR4, —NHSO2R5, —NHCON(R6a)(R6b), —NHCOOR7 or —CONHR8 wherein R4, R5, R6a, R6b, R7 and R8 are each a hydrogen atom, an optionally substituted hydrocarbon group, an optionally substituted heterocyclic group and the like), ring A is monocyclic aromatic ring optionally further having substituent(s), R1a and R1b are optionally bonded to each other to form an optionally substituted nitrogen-containing non-aromatic heterocycle, or a salt thereof or a prodrug thereof. The thrombin receptor antagonist of the present invention has a thrombin receptor (particularly PAR-1) antagonistic action and is useful for the prophylaxis or treatment of PAR-1 mediated pathological condition or disease.
摘要:
The present invention relates to a thrombin receptor antagonist containing a compound represented by the formula (I) wherein R1a, R1b and R2 are each a hydrogen atom, an optionally substituted hydrocarbon group, an optionally substituted heterocyclic group, or an optionally substituted alkoxy, R3 is a group represented by the formula —NHCOR4, —NHSO2R5, —NHCON(R6a)(R6b), —NHCOOR7 or —CONHR8 wherein R4, R5, R6a, R6b, R7 and R8 are each a hydrogen atom, an optionally substituted hydrocarbon group, an optionally substituted heterocyclic group and the like), ring A is monocyclic aromatic ring optionally further having substituent(s), R1a and R1b are optionally bonded to each other to form an optionally substituted nitrogen-containing non-aromatic heterocycle, or a salt thereof or a prodrug thereof. The thrombin receptor antagonist of the present invention has a thrombin receptor (particularly PAR-1) antagonistic action and is useful for the prophylaxis or treatment of PAR-1 mediated pathological condition or disease.
摘要:
A specialized polymeric peroxide is copolymerized with vinyl type monomers in the presence of organic liquid, thereby obtaining a solution of a copolymer having peroxy bonds therein.This solution is admixed with vinyl type monomers which are different in composition from the ones used in the first copolymerization, and the resultant mixture is subjected to block copolymerization.The obtained block copolymer solution is admixed with an organic liquid which exert solubility to one of polymers of the vinyl type monomers which are employed in the first or second copolymerization, whereby a non aqueous system liquid dispersion is obtained.This dispersion contains a block copolymer in a high concentration and it also is splendid in uniformity of dispersion and dispersion stability.
摘要:
Disclosed herein is a low shrinkable unsaturated polyester resin composition consisting of (A) 20-70% by weight of an unsaturated polyester, (B) 28-60% by weight of a monomer polymerizable with the above unsaturated polyester, and (C) 2-20% by weight of a block copolymer mixture. The mixtures of the monomer (B) and the block copolymer mixture (C), and a mixture of the polyester (A), the monomer (B), and the block copolymer mixture (C) are in a non-aqueous dispersion state. The block copolymer mixture is obtained by polymerizing either one of the monomers defined below in (a) and (b) with a polymerization initiator a polymeric perioxide represented by the formula: ##STR1## in which R.sub.1 represents a divalent branched hydrocarbon group having 10-30 carbons, and R.sub.2 and R.sub.3 represent a hydrogen atom, a hydroxyl group or an alkali metal, and the average polymerization degree n is 2-40, and is used to obtain a first polymer having peroxy bonds in its molecule, and block-polymerizing the first polymer with the remaining monomer (a) or (b) which has not been used in the first polymerization reaction wherein, (a) is a monomer or a monomer mixture consisting of 70-100% by weight of styrene monomer and 30-0% by weight of a monomer polymerizable therewith.(b) is a monomer or a mixture of monomers consisting of 70-100% by weight of C.sub.1-4 alkyl ester of acrylic acid or methacrylic acid and 0-30% by weight of a monomer polymerizable therewith.
摘要:
Fluoroalkyl derivatives which are novel compounds represented by the following general formula (I) or (II) of: ##STR1## orR.sub.1 --CH.dbd.CR.sub.2 (CF.sub.2).sub.n F (II)(wherein R.sub.1 stands for ##STR2## (where X stands for a hydrogen atom, a chlorine atom, a bromine atom, a fluorine atom, an iodine atom, a methyl group, an ethyl group, a methoxy group, an ethoxy group or a nitro group), an aroyloxy group, or an alkyl or alkoxycarbonyl group having 1 to 20 carbon atoms, and R.sub.2 stands for a hydrogen atom or a methyl group; and n stands for an integer of from 1 to 20.) A process for the preparation of the derivative is a process comprising reacting an olefin compound and a fluoroalkanesulfonyl chloride in the presence of a metal catalyst, or a process comprising an additional alkali treatment step which follows the aforementioned process.
摘要:
An unsaturated polyester resin composition which is obtained by incorporating a thermoplastic random-copolymer having peroxycarbonate groups in the molecule thereof into an unsaturated polyester resin, which composition is excellent in low shrinkage characteristics and it is not weakened in mechanical strength.
摘要:
A copolymer having peroxy bonds in the molecule thereof which is obtained by copolymerizing an diacyl type polymeric peroxide having ester bonds therein with one or more monomers having double bonds therein, may have a broad range of average molecular weight and a lot of peroxy bonds therein, and it may be used as an useful polymerization initiator in producing a block copolymer.
摘要:
High-purity dicumyl peroxide is obtained by mixing a melted crude dicumyl peroxide containing not less than 50% of dicumyl peroxide with an aqueous solution of surfactant, emulsifying the resulting mixture, and cooling the emulsion to a temperature lower than the temperature for solidifying dicumyl peroxide.
摘要:
A derivative of naphthalocyanine containing a perfluoroalkyl group and having a particular structure for ensuring excellent weather-proof properties, extremely high solubility in various solvents and capability of forming a film, and an optical recording medium prepared by using the derivative and capable of recording while using a focused beam of a semiconductor laser or the like. The derivative of naphthalocyanine containing a perfluoroalkyl group may be prepared by reacting a perfluoroalkanoyl peroxide having a particular structure with a naphthalocyanine.