Butadiene polymers containing 70% or more of 1,2-structure and a relatively low melting point are produced by polymerizing 1,3-butadiene in the presence of a catalyst which has been prepared by admixing (A) an organic solvent solution containing 1,3-butadiene, a cobalt compound and an organoaluminium compound; (B) an amide compound of the formula (2) or (3): ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are respectively an H atom, aliphatic hydrocarbon radical of 1 to 7 carbon atoms or aromatic ...

There is disclosed a measurement reagent for a human Cu.Zn-superoxide dismutase (SOD) which comprises an anti-human Cu.Zn-SOD monoclonal antibody labelled with an enzyme, a method for measuring a human Cu.Zn-SOD which comprises measuring the human Cu.Zn-SOD with the measurement reagent for the human Cu.Zn-SOD, and an anti-human Cu.Zn-SOD monoclonal antibody by the enzyme-linked immunosorbent assay according to the sandwich method, a diagnostic test drug for a human cancer of the stomach which co...

A process for producing an aromatic polycarbonate through an ester interchange reaction between an aromatic carbonic acid diester and an aromatic dihydroxy compound, wherein the aromatic carbonic acid diester is obtained through the decarbonylation reaction of an aromatic oxalic acid diester represented by the following general formula (1): ##STR1## wherein two Ar's are the same or different aromatic hydrocarbon groups having 6 to 14 carbon atoms, and has a hydrolyzable halogen content of 5 ppm ...

Disclosed are a laminate film having at least three layers, the three layers being (A) an intermediate layer and (B) two outer layers, the intermediate layer (A) being composed of a resin composition comprising 20 to 100% by weight of an amorphous polyolefin containing at least 50% by weight of a propylene and/or butene-1 and 80 to 0% by weight of a crystalline polypropylene, and the two outer layers (B) being composed of a resin composition comprising a polyolefin and a thermoplastic styrene el...

A method of using 4-anilinoquinazoline derivatives of formula (I): ##STR1## (in which: R.sup.1 represents a hydrogen atom, a halogen, atom, a trifluoromethyl group or a nitro group; R.sup.2 represents a hydrogen atom, a C.sub.1 -C.sub.4 alkyl group, an alkoxy group or a halogen atom; and R.sup.3 represents a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group) and pharmaceutically acceptable salts thereof are, provided that R.sup.1 does not represents a hydrogen atom or a chlorine atom in the 6- pos...

Compounds of formula (I): ##STR1## (in which: R.sup.1 represents fluorinated methoxy: R.sup.2 represents a nitrogen-containing heterocyclic group and R.sup.3 represents hydrogen or amino) and pharmaceutically acceptable salts, esters and amides thereof are valuable antibacterial agents, which may be prepared by reacting a compound similar to that of formula (I) but in which R.sup.2 is replaced by a halogen atom with a compound providing the required group R.sup.2.

Compounds of formula (I): ##STR1## (in which: R.sup.1 represents fluorinated methoxy; R.sup.2 represents a nitrogen-containing heterocyclic group and R.sup.3 represents hydrogen or amino) and pharmaceutically acceptable salts, esters and amides thereof are valuable antibacterial agents, which may be prepared by reacting a compound similar to that of formula (I) but in which R.sup.2 is replaced by a halogen atom with a compound providing the required group R.sup.2.

Compounds of formula (I): ##STR1## wherein R.sup.1 is hydrogen, alkyl, halogen, haloalkyl, hydroxy, alkoxy, haloalkoxy, alkylthio, haloalkylthio, amino, alkanoyl, haloalkanoyl, carboxy, alkoxycarbonyl, carbamoyl, cyano, nitro, alkanesulfonyl, haloalkanesulfonyl or sulfamoyl; R.sup.2 is 5,6-dihydro-1,4,2-dioxazin-3-yl; R.sup.3 is hydrogen, hydroxy, optionally substituted alkoxy, aralkyloxy, alkanoyloxy, alkenoyloxy, cycloalkylcarbonyloxy, arylcarbonyloxy, alkoxycarbonyloxy, aralkyloxycarbonylxy, ...

A pyrrolopyridazine compound having the formula (I) or a pharmaceutically acceptable salt thereof: ##STR1## wherein, R.sup.1 is a C.sub.2 -C.sub.6 alkenyl group, a halogeno C.sub.2 -C.sub.6 alkenyl group, a C.sub.3 -C.sub.7 cycloalkyl group which may be optionally substituted or a C.sub.3 -C.sub.7 cycloalkyl- C.sub.1 -C.sub.6 alkyl group which may be optionally substituted. R.sup.2 is a C.sub.1 -C.sub.6 alkyl group. R.sup.3 is a hydroxymethyl group, a C.sub.2 -C.sub.6 aliphatic acyloxymethyl gro...

A cyclic amine derivative represented by the following formula: ##STR1## wherein R.sup.1 represents a substituted or unsubstituted phenyl group, R.sup.2 represents a substituted of unsubstituted C.sub.1 -C.sub.8 aliphatic acyl group, a substituted or unsubstituted benzoyl group or a C.sub.1 -C.sub.4 alkoxycarbonyl group, and R.sup.3 represents a substituted 3 to 7 membered saturated cyclic amino group which may form a fused ring; or pharmaceutically acceptable salts thereof. The compounds and sa...