Abstract: A compound of the formula: ##STR1## , which is useful as an antimicrobial agent.

Abstract: Leukotriene B.sub.4 antagonists of the formula: ##STR1## wherein each symbol is as defined in the specification, processes for producing them, and pharmaceutical compositions containing them. The compounds of the present invention are very useful as the drugs for the treatment of allergic and inflammatory diseases.

Abstract: Crystalline palladium tetrakis (triphenylphosphine) which exhibits a specific powder X-ray pattern and is excellent in storage stability is obtained by allowing palladium chloride to react with triphenylphosphine in aprotic polar solvents, treating the reaction mixture with an aqueous hydrazine solution, collecting the resulting crystals by filtration, washing with alcohols and further washing with hydrocarbon solvents.

Abstract: A preparation administrator has an administrator body including a solid preparation and having at its one end an inflow channel for solvent and at the other end an outflow channel for liquid preparation, a solvent container containing a solvent to dissolve, disperse or suspend the preparation and being connected to the inflow channel of the administrator body, and an ejector for ejecting the solvent together with the solid preparation in the body through the outflow channel of the body. A solid preparation in the administrator body is dissolved, or suspended or dispersed in the solvent fed from the solvent container and ejected as a liquid preparation through the outflow channel of the body.

Abstract: Novel .beta.-lactam compounds belonging to carbapenem or penem derivatives useful as antimicrobial agents or intermediates therefor and a process for producing these compounds are disclosed.

Abstract: A stabilized preparation, particularly, freeze-drying injection, of anthracycline, for example, (7S, 9S)-9-acetyl-9-amino-7-[(2-deoxy-.beta.-D-erythropentopyranosyl)oxy]-7,8,9 ,10-tetrahydro-6,11-dihydroxynaphthacene-5,12-dione or salts thereof which comprises L-cysteine or salts thereof.

Abstract: Novel .beta.-lactam compounds belonging to carbapenem or penem derivatives useful as antimicrobial agents or intermediates therefor and a process for producing these compounds are disclosed.

Abstract: Novel .beta.-lactam compounds belonging to carbapenem or penem derivatives useful as antimicrobial agents or intermediates therefor and a process for producing these compounds are disclosed.

Abstract: A novel cyanoimidazole nucleoside and derivative thereof, particularly 4-cyanoimidazolium-5-olate nucleoside and acyl derivatives thereof, and pharmaceutically acceptable salts thereof which are useful as antitumor agents and immunosuppressants, are prepared by dehydrating carboxamide derivatives of the formula: ##STR1## wherein R is an acyl group, and then, if desired, deacylating.

Abstract: A pharmaceutical composition is provided herein containing as a key ingredient 4-carbamoyl-imidazolium-5-oleate of the formula (I) ##STR1## its salt or hydrate thereof, and one or more of a sulfur compound capable of producing at least one of the ions selected from HSO.sub.3.sup.--, SO.sub.3.sup.2-- and S.sub.2 O.sub.5.sup.2--. The sulfur compounds prevent discoloration of the composition.The stabilization against coloration is further enhanced by the presence of L-cysteine hydrochloride. The solubility of the compound (I) can be further enhanced by the presence of a basic substance. The active ingredient is known as a therapeutic agent for the treatment of such diseases as rheumatism and nephritis.