Carboxamido tetrazoles
US4085115A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1976 |
| Grant date | Apr 18, 1978 |
| Priority date | — |
| Expiry date | Apr 6, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D493/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There are described compounds of formula Ix, ##STR1## IN WHICH ONE OR MORE ADJACENT PAIRS OF P, Q, R and T represent a chain of formula XX, ##STR2## or a group of formula X, ##STR3## in which Ba and Bb represent the pair of groups:- a carbon-carbon bond and --CRa.dbd.CRb--; or an adjacent pair of P, Q, R and T represent a group of formula XI, ##STR4## Ra and Rb and those of P, Q, R and T which do not form a chain of formula XX or a group of formula X or XI may be the same or different and each represents hydrogen; alkyl; alkoxy; alkenyl; alkenyloxy; alkyl or alkoxy, substituted by a hydroxy, alkoxy, aryl or halo group; amino; mono- or di-lower alkylamino; aminoalkoxy; aminoalkoxy substituted by a lower alkyl group; nitro; hydroxy; halogen; acyl; or aryloxy. There are also described processes for making the compounds and pharmaceutical, e.g. anti-allergic, compositions containing them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.