Abstract: There is described a process for preparing a sulphoxide of the formula ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4, taken individually, are alkyl, alkoxy or aryl groups, X is an alkylene group, R.sup.5 is a carboxylic acid protecting group and Y is a linking group through one or two carbon atoms forming a penam or cephem nucleus, which comprises reacting a compound of formula ##STR2## with an oxidizing agent. .alpha.-Sulphoxide compounds of formula (I) are also provided as novel intermediates.

Abstract: Benzoxazoles substituted in the 2-position with sulfhydryl or halogen and substituted in the 5- or 6-position with an acetic or propionic acid group or a salt or ester thereof or a nitrile convertible thereto useful as intermediates in the preparation of 5- or 6-Substituted benzoxazole propionic or acetic acid derivatives, substituted in the 2-position of the oxazole nucleus by a group of the formula AR.sup.4 wherein A is --CH.sub.2 --, --CO--, --CHOR--, or --NR--, wherein R is hydrogen, C.sub.1-6 alkyl or C.sub.2-7 acyl, and R.sup.4 is optionally substituted phenyl, useful as non-steroidal, non-narcotic, analgesic, antipyretic and anti-inflammatory agents.

Abstract: The invention provides 3-(2-formyl-3-hydroxy-5-oxocyclopent-1-enyl)-p ropanoic acid and derivatives thereof having anti-thrombotic activity coupled with low toxicity. Also provided is a method for preparing such compounds by subjecting a 3-[3-hydroxy-5-oxo-2-(.beta.-styryl)cyclopent-1-enyl]-propanoic acid or derivative thereof to oxidative cleavage.

Abstract: Propanoic acid derivatives of formula: ##STR1## where X represents a ketonic or hydroxylic function, R.sup.1 is a C.sub.1.sub.-8 alkyl group optionally substituted by hydroxy or --COOH and R.sup.2 is hydrogen or a protecting group, having spasmolytic activity.

Abstract: 2-Nitroimidazolyl-4-thiomorpholinoiminoalkyl thiazoles are useful as anti-parasitic agents, being active against Trypanosomidae, and may be prepared by reaction of novel 2-nitroimidazolyl-4-acylthiazoles with an N-aminothiomorpholine.

Abstract: The invention provides 3-(2-formyl-3-hydroxy-5-oxocyclopent-1-enyl)-propanoic acid and derivatives thereof having anti-thrombotic activity coupled with low toxicity. Also provided is a method for preparing such compounds by subjecting a 3-[3-hydroxy-5-oxo-2-(.beta.-styryl)cyclopent-1-enyl]-propanoic acid or derivative thereof to oxidative cleavage.

Abstract: 2-(Optionally substituted)phenyl-benzoxazoles having a carboxy alkyl, a tetrazolyl, or oxazolinyl group at the 5 or 6 position useful as aspirin-like non-steroidal, non-narcotic, analgesic, antipyretic and anti-inflammatory agents.

Abstract: 5- or 6-Substituted benzoxazole propionic or acetic acid derivatives, substituted in the 2-position of the oxazole nucleus by a group of the formula AR.sup.4 wherein A is --CH.sub.2 --, --CO--, --CHOR--, or --NR--, wherein R is hydrogen, C.sub.1.sub.-6 alkyl or C.sub.2.sub.-7 acyl, and R.sup.4 is optionally substituted phenyl, useful as non-steroidal, non-narcotic, analgesic, antipyretic and anti-inflammatory agents.

Abstract: The invention provides styryl cyclopentenyl propanoic acids and derivatives thereof having spasmolytic activity coupled with low toxicity. Also provided is a method of preparing styryl cyclopentenyl propanoic acid compounds which involves cyclising 7-hydroxy-5,8-dioxo-10-phenyldec-9-enoic acid in the presence of a base.

Abstract: 2-Nitroimidazolyl-4-thiomorpholinoiminoalkyl thiazoles are useful as anti-parasitic agents, being active against Trypanosomidae, and may be prepared by reaction of novel 2-nitroimidazolyl-4-acylthiazoles with an N-aminothiomorpholine.

Abstract: Secondary and tertiary 2-phenylbicyclo[2,2,2]oct-3-yl alkyl amines are useful as anti-depressant and anti-Parkinsonism agents. They may be prepared from the corresponding aldehydes, nitriles, amides, isocyanates or esters using known chemical techniques.

Abstract: An improved method for the preparation of intermediates of formula: ##EQU1## WHERE R.sup.1 and R.sup.2 represent hydrogen, C.sub.1.sub.-4 alkyl, C.sub.1.sub.-4 hydroxyalkyl, C.sub.3.sub.-10 cycloalkyl, C.sub.3.sub.-6 acyloxyalkyl, or phenyl, by mercuric ion assisted hydrolysis of the corresponding dithianes, and novel intermediates thereby produced.

Abstract: The invention provides novel 5- and 6-benzoxazolyl alkanoic acids, optionally substituted in the 2-position, and derivatives thereof which possess anti-inflammatory, anti-pyretic and analgesic activity. Also provided is a process for preparing such compounds by cyclising an appropriately substituted o-aminophenol and, if necessary, converting the resultant benzoxazole to the desired compound.

Abstract: The invention provides novel 5- and 6-benzoxazolyl alkanoic acids, optionally substituted in the 2-position, and derivatives thereof which possess anti-inflammatory, anti-pyretic and analgesic activity. Also provided is a process for preparing such compounds by cyclising an appropriately substituted o-aminophenol and, if necessary, converting the resultant benzoxazole to the desired compound.

Abstract: 3-Phenyl substituted 1,2-benzisoxazole acetic and propionic acid derivatives with anti-inflammatory activity.