Burroughs Wellcome Co.

John Frederick Batchelor

Harold Francis Hodson

Richard M Hyde

David J Livingstone

John W Selway

John Henry Gorvin

Jeremy G Vinter

Clive L Yeates

Ramachanderan Iyer

Williasm R King

A compound of formula (I): ##STR1## wherein R.sup.1 represents a hydrogen or halogen atom, or a cyano group;

Heterocyclic compounds

Tricyclic compounds of formula (I) ##STR1## wherein X.sup.1 is a carboxyl or 5-tetrazolyl group

Tetrazolyl substituted tricyclic compounds and pharmacological

A method of treating or preventing viral infections, in particular rhinovirus infections comprising the administration of an effective amount of a 2-phenyltetralin derivative or a heterocyclic analogue thereof. Pharmaceutical compositions containing these compounds, and some novel compounds are also disclosed.

Chemotherapeutic agents

Use of compounds of formula (I) ##STR1## to provide a more effective delivery of oxygen to the tissues of a mammalian, including human, recipient. In vivo applications include the relief or amelioration of conditions wherein there is tissue hypoxia; in vitro the compounds are of use in the storage of mammalian, including human, red blood cells to maintain their oxygen-delivery capacity and prolong their useful storage life. Also provided is a sterile, sealed vessel containing an anticoagulant, a non-toxic amount of a compound of formula (I) and optionally mammalian, in particular human, red blood cells.

Pharmacologically active ketones and use

Storage of red blood cells

2-Pyridyl chroman and derivatives thereof have been discovered to have potent anti-viral activities, i.e. particular against rhinovirus. Novel compounds and their pharmaceutically acceptable salts, pharmaceutical formulations containing the compounds of this invention and the treatment of viral infections with these formulations are all disclosed. 2-(3-Pyridyl)chroman and 6-chloro-2-(3-pyridyl)chroman are examples of especially active compounds of this invention.

Certain tricyclic sulphone compounds each of which is substituted in the 1-,2-,3- or 4-position by a carboxyl or (5-tetrazolyl) group and each of which is optionally substituted in the 5-,6-,7- or 8-position by a second carboxyl or (5-tetrazolyl) group or a substituent selected from cyano, halogen, nitro, alkyl, alkoxy, acyl, amino, acylamino, thioalkyl, alkylsulphinyl and alkylsulphonyl, as well as salts, and optionally substituted esters and amides of the carboxyl substituted compounds and alkyl derivatives of the tetrazolyl substituted compounds, are useful for the relief or prophylaxis of allergic conditions.

Cyclic sulphur compounds

Certain tricyclic sulphone compounds each of which is substituted in the 1-, 2-, 3- or 4-position by a carboxyl or (5-tetrazolyl) group and each of which is optionally substituted in the 5-, 6-, 7- or 8-position by a second carboxyl or (5-tetrazolyl) group or a substituent selected from cyano, halogen, nitro, alkyl, alkoxy, acyl, amino, acylamino, thioalkyl, alkylsulphinyl and alkylsulphonyl, as well as salts, and optionally substituted esters and amides of the carboxyl substituted compounds and alkyl derivatives of the tetrazolyl substituted compounds, are useful for the relief or prophylaxis of allergic conditions.

Cyclic sulphur compounds triazolyl substituted phenoxathin 10, 10

Certain tricyclic thioxanthone-10,10-dioxide compounds each of which is substituted in the 1-,2-,3- or 4-position by a carboxyl or (5-tetrazolyl) group and each of which is optionally substituted in the 5-,6-,7- or 8-position by a second carboxyl or (5-tetrazolyl) group or a substituent selected from cyano, halogen, nitro, alkyl, alkoxy, acyl, amino, acylamino, thioalkyl, alkylsulphinyl and alkylsulphonyl, as well as salts, and optionally substituted esters and amides of the carboxyl substituted compounds and alkyl derivatives of the tetrazolyl substituted compounds, are useful for the relief or prophylaxis of allergic conditions.

Antiallergic cyclic sulphur compounds

Fluorenone and anthraquinone compounds substituted by at at least one tetrazolyl group in one ring, and further substituted in the other ring, optionally for the fluorenones, have antiallergic activity.

Treatment for allergy and method of composition thereof

Certain tricyclic sulphoxide compounds each of which is substituted in the 1-,2-,3- or 4-position by a carboxyl or (5-tetrazolyl) group and each of which is optionally substituted in the 5-,6-,7- or 8-position by a second carboxyl or (5-tetrazolyl) group or a substituent selected from cyano, halogen, nitro, alkyl, alkoxy, acyl, amino, acylamino, thioalkyl, alkylsulphinyl and alkylsulphonyl, as well as salts, and optionally substituted esters and amides of the carboxyl substituted compounds and alkyl derivatives of the tetrazolyl substituted compounds, are useful for the relief or prophylaxis of allergic conditions.

Antiallergic pharmaceutical composition and use

Fluorenone and anthraquinone compounds substituted by at least one tetrazolyl group in one ring, and further substituted in the other ring, optionally for the fluorenones, have antiallergic activity.

Growing community of inventors

Beckenham, United Kingdom

John Frederick Batchelor