Process for preparing 1-substituted-1,4-benzodiazepine derivatives
US4579685A · kind A · utility
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19Claims
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Key dates
| Filing date | Jul 27, 1984 |
| Grant date | Apr 1, 1986 |
| Priority date | — |
| Expiry date | Jul 27, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D403/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Improvement in the production of psychotropic 1-substituted-1,3-dihydro-1,4-benzodiazepin-2-ones starting from 2-(1-substituted)amino-benzophenonimines through novel intermediates of the formula: ##STR1## (wherein R is hydrogen, methyl or benzyl, R.sup.1 is C.sub.1 -C.sub.5 alkyl or phenyl-C.sub.1 -C.sub.5 alkyl, X and Y each is hydrogen or halogen and n is an integer of 1 to 2) with economical and industrial advantage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.