Abstract: Drugs or reagents containing as the active ingredient N-acyloxylated cycloalkyl compounds represented by general formula (I): wherein A is optionally substituted C4 or C5 cycloalkyl which may have one double bond in the ring; and R is C1-C3 alkyl or phenyl). The above compounds are hydroxyamine derivatives functioning as spin trapping agents and can rapidly react with free radicals or active oxygen in an objective organ in spite of their being excellent in stability during the preparation or administration thereof.

Abstract: A medicine or reagent comprising a bipyrazole derivative of the following formula (I), ##STR1## wherein R.sub.1 and R.sub.2 are individually a hydrogen atom, aryl group, alkyl group having 1-5 carbon atoms, or alkoxycarbonylalkyl group having a total of 3-6 carbon atoms, R.sub.3 and R.sub.4 are individually a hydrogen atom, alkyl group having 1-5 carbon atoms, cycloalkyl group having 5-7 carbon atoms, hydroxyalkyl group having 1-3 carbon atoms, benzyl group, naphthyl group, or substituted or unsubstituted phenyl group, as an active component. The medicine is useful for effectively capturing active oxygen and free radicals which cause adult diseases such as cerebral ischemia, heart disease, digestive system disease, and carcinoma, as well as inflammation, and for diagnosing diseases associated with in vivo free radicals.

Abstract: Derivatives of alkyl 3-(substituted or unsubstituted benzylidene)-1-alkyl-2-oxocylopentanecarboxylate of the following formula (I), ##STR1## wherein R.sup.1 and R.sup.2 individually represent a lower alkyl group; X is a halogen atom, a cyano group, an alkyl group, a haloalkyl group, a phenyl group, or a nitro group; and m is an integer of 0 to 5; provided when m is 2 or larger, Xs may be either the same or different. The compounds are useful themselves as an effective ingredient of antifungal compositions, and can be used for intermediates of agriculture chemicals and medicines.

Abstract: A process for the production of dinitrophenyl ethers having the general formula [III]: ##STR1## wherein, one of R.sub.1 and R.sub.2 is a nitro radical, and the other is a hydrogen atom or a straight-chain, branched-chain or cyclic, saturated or unsaturated hydrocarbon radical containing from 1 to 10 carbon atoms, and R.sub.3 is a radical selected from the group consisting of (i) a straight-chain, branched-chain or cyclic, saturated or unsaturated hydrocarbon radical containing from 2 to 10 carbon atoms, (ii) a straight-chain hydrocarbon radical having one phenyl group as a substituent and containing from 1 to 5 carbon atoms, (iii) a phenyl radical, and (iv) a phenyl radical with one or more than one substituents selected from the group consisting of a nitro group, a halogen group, a saturated or unsaturated hydrocarbon group containing from 1 to 5 carbon atoms and an alkoxy group containing from 1 to 4 carbon atoms, by reacting a compound represented by the formula [I]: ##STR2## wherein, R.sub.1 and R.sub.

Abstract: A herbicidal composition comprises an active ingredient having the formula ##STR1## wherein R.sup.1 represents a C.sub.1 -C.sub.5 alkoxy group; R.sup.2 represents hydrogen atom, or a C.sub.1 -C.sub.5 alkyl group.

Abstract: A process for producing pyrogallol or 5-substituted pyrogallol having the formula: ##SPC1##Wherein R is selected from the group consisting of alkyl, cycloalkyl, aryl, and aralkyl, or a mixture thereof which comprises heating an aqueous solution of 4-substituted-2,6-diaminophenol or 4-substituted-2,6-diamino 1-alkoxybenzene having the formula: ##SPC2##Wherein R is as defined above and A is selected from the group consisting of hydrogen and alkyl, under acid conditions.