Tetrazole substituted compounds and their anti-allergic use
US4740514A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 1986 |
| Grant date | Apr 26, 1988 |
| Priority date | — |
| Expiry date | May 27, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P37/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
There are described compounds of the formula ##STR1## in which R.sup.1 is hydrogen or C.sub.1-6 alkyl, R.sup.2 is hydrogen, C.sub.1-6 alkyl or C.sub.3-6 alkenyl, X and Y are each oxygen, sulphur, sulphinyl or sulphonyl, n is 2 to 6 and Z is 1H-tetrazol-5-yl, 1H-tetrazol-5-ylthio, 1H-tetrazol-5-ylsulphinyl, 1H-tetrazol-5-ylsulphonyl, cyano or thiocyano, provided that when both X and Y are oxygen Z is 1H-tetrazol-5-ylthio, 1H-tetrazol-5-ylsulphinyl, 1H-tetrazol-5-ylsulphonyl or thiocyano; and salts thereof. The compounds in which Z is other than cyano or thiocyano have pharmaceutical activity and inhibit leukotriene action or formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.