Abstract: This invention relates to bicyclic aryl compounds having selective LTB.sub.4 antagonist properties and comprising an amido substituent, a substituent group having a terminal carboxylic acid or derivative thereof and a lipophilic substituent, and to methods for the treatment of disorders which result from LTB.sub.4 activity and pharmaceutical compositions including such compounds.

Abstract: Monocyclic aryl compounds having selective LTB.sub.4 antagonists properties and comprising an amido substituent, a substituent group having a terminal carboxylic acid or derivative thereof and a lipophilic substituent, therapeutic compositions and methods of treatment of disorders which result from LTB.sub.4 activity using the monocyclic aryl compounds are disclosed.

Abstract: Monocyclic and bicyclic aryl ring compounds having selective LTB.sub.4 properties and comprising two ring substituents, the first substituent comprising a lipophilic group and a terminal carboxylic acid or derivative group, and the second substituent comprising an amido group, therapeutic compositions and methods of treatment of disorders which result from LTB.sub.4 activity using the mono- and bicyclic aryl compounds are disclosed.

Abstract: A tuyere for a metallurgical vessel comprising a solid metal tuyere body with a central gas feed bore. The gas feed bore contains at least one gas feed pipe. The tuyere body also has at least one water-cooled bore between the outer wall of the tuyere body and the gas feed bore. A water-cooled bore has a water passage for circulating water therethrough. A water cooling header with separated water inlet and outlet is attached to the tuyere body external to the metallurgical vessel. A water passage is provided for a flow of water from the water inlet through the water passage in the water-cooled bore to the water outlet. The cooling capacity of the tuyere is sufficient to cause the formation of a protective encrustation on the end of the tuyere, and to effectively reduce erosion and chemical reaction of the tuyere material and the vessel wall.

Abstract: Compounds of the structure; ##STR1## and pharmaceutically acceptable salts thereof, wherein:R.sub.1 is H, alkyl, alkoxy, carboxyl, alkylcarboxy, trifluoromethyl, halogen, nitro or hydroxy;X is O, N, S or C;Y is O, N or S; andR.sub.2 is H, alkyl, cycloalkyl, aryl or heteroaryl useful in the treatment of ischemic heart disease and hypertriglyceridemia.

Abstract: Compounds of the structure ##STR1## and pharmaceutically acceptable salts thereof wherein: R.sub.1 is H, alkyl, alkoxy, carboxyl, alkylcarboxy, acylamino, dialkyl amino, trihalomethyl, halogen, nitro, hydroxy or cyano;X is in the 5, 6 or 7 position and is O(CH.sub.2).sub.n, N(CH.sub.2).sub.n --R.sub.3, S(CH.sub.2).sub.n or (CH.sub.2).sub.n ;Y is O(CH.sub.2).sub.n, S(CH.sub.2).sub.n, N(CH.sub.2).sub.n --R.sub.3 where R.sub.3 is H, alkyl or (CH.sub.2).sub.n ;R.sub.2 is monosubstituted or independently disubstituted H, hydroxy, alkyl, halogen, nitro, alkoxy, carboxyl, alkylcarboxy, trihalomethyl, cyano, trifluoromethyl, dialkylamino or acylamino;Z is O, S or (NR.sub.3).sub.2 where R.sub.3 is H, alkyl or aryl; andn is 0 to 10 inclusiveuseful in the treatment of ischemic heart disease and hypertriglyceridemia.

Abstract: X is in the 8 position and is O(CH.sub.2).sub.n, N(CH.sub.2).sub.n ;Y is O(CH.sub.2).sub.n, N(CH.sub.2).sub.n ;R.sub.2 is monosubstituted or independently disubstituted H, carboxyl, or alkylcarboxy;Z is 0; andn is 0 to 10 inclusive,useful in the treatment of ischemic heart disease and hypertriglyceridemia.