Abstract: This invention provides novel benzylidene rhodanines which are useful as agents in treating or preventing conditions associated with &bgr;-amyloid peptide. This invention further provides methods of treating or preventing Alzheimer's Disease which comprises administering to a mammal in need thereof an effective amount of one or more of the benzylidene rhodanines of the present invention.

Abstract: This invention provides novel benzylidene rhodanines which are useful as agents in treating or preventing conditions associated with .beta.-amyloid peptide. This invention further provides methods of treating or preventing Alzheimer's Disease which comprises administering to a mammal in need thereof an effective amount of one or more of the benzylidene rhodanines of the present invention.

Abstract: Selected acid functional polyhydronorharman type derivatives effective as thromboxane synthase inhibitors having the formula: ##STR1## where R.sub.1 and R.sub.2 are monovalent radicals, --(L.sub.a)-- is a linking group of 4 to 8 chain atoms, and A is an acidic group.

Abstract: Selected acid functional 6-azaindole type derivatives effective as thromboxane synthase inhibitors having the formula (II): ##STR1## where n is an integer from zero to 3, m is an integer from zero to 2, R.sub.1 and R.sub.2 are monovalent radicals, --(L.sub.a)-- is a linking group of 4 to 8 chain atoms, and A is an acidic group.

Abstract: 7-Substituted bicyclic pyrazolidinone compounds as antimicrobials and the corresponding intermediates, are discussed or provided. The use of the antimicrobial compounds in pharmaceutical compositions and in methods for treating bacterial infections is set forth.

Abstract: 7-Substituted bicyclic pyrazolidinone compounds as antimicrobials and the corresponding intermediates, are discussed or provided. The use of the antimicrobial compounds in pharmaceutical compositions and in methods for treating bacterial infections is set forth.

Abstract: Bicyclic pyrazolidinones which have antimicrobial and/or herbicidal properties are discussed. The use of these compounds in pharmaceutical compositions, herbicidal compositions, and methods for treating bacterial infections and controlling undesired plants is set forth.

Abstract: 2,3-(Dihydro) bicyclic pyrazolidinones are intermediates for bicyclic pyrazolidinone antimicrobials.

Abstract: The instant invention provides disubstituted tetrazoles that antagonizes the effect of leukotrienes C.sub.4, D.sub.4 or E.sub.4 or any combination thereof in selected tissues. The disubstituted tetrazoles are used in pharmaceutical formulations and methods of treatment of conditions caused by excessive release or production of leukotrienes C.sub.4, D.sub.4 or E.sub.4 or any combination thereof. Such conditions include an immediate hypersensitivity reaction of the type represented by asthma, or by shock or other adverse cardiovascular effects.

Abstract: 1,3-Dialkylbenzenes are acylated and deprotected in a mixture of acetic or propionic acid and hydrobromic acid. The dihydroxyphenones thus produced are intermediates in the synthesis of leukotriene antagonists.

Abstract: Resorcinol is acylated in a mixture of acetic or propionic acid and hydrobromic acid. The dihydroxy acylbenzenes thus produced are intermediates in the synthesis of leukotriene antagonists.