Lilly Industries, Inc.

Eli Lilly and Company

Eli Lilly Industries Limited

Terence Alan Hicks

Delme Evans

David William Dunwell

Peter Thaddeus Gallagher

William M Owton

Colin W Smith

Colin P Dell

Michael Brunavs

Graham W Mullier

David R Dobson

Pharmaceutical compounds of the formula ##STR1## in which R.sup.1 and R.sup.3 are each C.sub.1-4 alkyl or C.sub.1-4 alkyl-carbonyl, and R.sup.2 is carboxy, tetrazolyl, C.sub.1-4 alkyl-sulphonamido or --CR.sup.4 R.sup.5 CO.sub.2 H where R.sup.4 and R.sup.5 are each hydrogen or C.sub.1-4 alkyl; provided that when R.sup.1 and R.sup.3 are both methyl and when R.sup.1 and R.sup.3 are both methylcarbonyl, R.sup.2 is not carboxy; and salts and esters thereof.

Pharmaceutical compounds

Pharmaceutical compounds of the formula ##STR1## in which R.sup.1 and R.sup.2 are each hydrogen, hydroxyl, halo, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, acyloxy, --O-glucoside, optionally substituted phenyl or optionally substituted phenyl-C.sub.1-4 alkoxy;

Compounds of the following formula have pharmaceutical properties: ##STR1## in which X is R'(HO)C.dbd.C(CN)--, R.sup.1 (CO)--CH(CN)-- or ##STR2## R.sup.1 and R.sup.2 are each hydrogen or C.sub.1-6 alkyl, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are each hydrogen, hydroxy, halogen, nitro, cyano, carboxy, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, C.sub.1-4 alkylthio, halo-substituted C.sub.1-4 alkyl, halo-substituted C.sub.1-4 alkoxy, halo-substituted C.sub.1-4 alkylthio, C.sub.2-5 alkoxycarbonyl, optionally substituted phenyl, optionally substituted phenoxy, R'R'N-- where R' and R' are each hydrogen or C.sub.1-4 alkyl or R''CONH-- where R'' is C.sub.1-4 alkyl, or a group of the formula --CR.sup.7 R.sup.8 R.sup.9 in which R.sup.7, R.sup.8 and R.sup.9 are each C.sub.1-6 alkyl, halo-substituted C.sub.1-6 alkyl or optionally substituted phenyl, or R.sup.7 and R.sup.8, together with the carbon atom to which they are attached, form a cycloalkyl group containing 3 to 7 carbon atoms, or R.sup.7, R.sup.8 and R.sup.9 together with the carbon atom to which they are attached, form a bicycloalkyl group containing 4 to 9 carbon atoms, and Y is a 5- or 6-membered heterocyclic ring excluding pyrazole; and salts thereof.

Compounds of the following formula have pharmaceutical properties: ##STR1## in which X is R.sup.1 (HO)C.dbd.C(CN)--, R.sup.1 (CO)--CH(CN)-- or ##STR2## R.sup.1 and R.sup.2 are each hydrogen or C.sub.1-6 alkyl, R.sup.3, R.sup.4 and R.sup.5 are each hydrogen, hydroxy, halogen, nitro, cyano, carboxy, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, C.sub.1-4 alkylthio, halo-substituted C.sub.1-4 alkyl, halo-substituted C.sub.1-4 alkoxy, halo-substituted C.sub.1-4 alkylthio, C.sub.2-5 alkoxycarbonyl, optionally substituted phenyl, optionally substituted phenoxy, R'R'N- where R' and R' are each hydrogen or C.sub.1-4 alkyl R''CONH-- where R'' is C.sub.1-4 alkyl, R.sup.6, R.sup.7 and R.sup.8 are each C.sub.1-6 alkyl, halo-substituted C.sub.1-6 alkyl or optionally substituted phenyl, or R.sup.6 and R.sup.7, together with the carbon atom to which they are attached, form a cycloalkyl group containing 3 to 7 carbon atoms, or R.sup.6, R.sup.7 and R.sup.8 together with the carbon atom to which they are attached, form a bicycloalkyl group containing 4 to 9 carbon atoms; and salts thereof.

N-phenyl amide compounds

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.

2,5 OR 2,6-Disubstituted benzoxazoles

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.

2,5 OR 2,6 Disubstituted benzoxazoles

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.

2-(Optionally substituted)phenyl-5 or 6-substituted benzoxazoles

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 cyclizing an appropriately substituted o-aminophenol and, if necessary, converting the resultant benzoxazole to the desired compound.

Cyanomethyl substituted benzoxazoles

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.

Growing community of inventors

Farnborough, United Kingdom

Terence Alan Hicks