1,4-benzoxazine derivatives
US5440036A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1993 |
| Grant date | Aug 8, 1995 |
| Priority date | — |
| Expiry date | Dec 3, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D265/36
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A 1,4-benzoxazine derivative represented by the following formula (1): ##STR1## wherein R.sup.1 represents an unsubstituted or halogen-substituted lower alkyl, unsubstituted or halogen-substituted lower alkylsulfonyl, nitro or cyano group, R.sup.2 and R.sup.3 may be the same or different and individually represent a hydrogen atom or a lower alkyl group or are fused together with the adjacent carbon atom into a 3- to 6-membered carbon ring, R.sup.4 represents a hydrogen atom or an unsubstituted or substituted lower alkyl or acyl group, R.sup.5 represents a hydrogen atom or a unsubstituted or substituted lower alkyl, lower alkenyl, lower alkoxyl, aryl, aryloxyl or heterocyclic ring group, and Y represents an oxygen or sulfur atom, with the proviso that R.sup.1 is other than a nitro or cyano group when R.sup.2 and R.sup.3 are individually a methyl group, R.sup.4 is a hydrogen atom, R.sup.5 is a 3-chloropropyl group and Y is an oxygen atom; or a salt thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.