Synthesising method and benzoxathiepine intermediates
US7902381B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Apr 8, 2005 |
| Grant date | Mar 8, 2011 |
| Priority date | — |
| Expiry date | Jul 7, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C323/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to preparing derivatives of formula (1), wherein, in particular R1 and R2, identical or different, represent a hydrogen, flourine or chlorine atom, a hydroxy group, an alkyl radical and an alkoxy radical, R3 is an alkyl radical, a hydroxy group, or a methoxy radical, R4 is a hydrogen atom or a methyl radical and R5 and R6, identical or different, represent a hydrogen atom, an alkyl radical, an alkoxy radical, an alkylthio radical, and an alkylamino radical. The inventive method consists in reducing an amid of formula (9).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.