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Priority to RO127033ApriorityCriticalpatent/RO96410B1/ro
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Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Plural Heterocyclic Compounds
(AREA)
Abstract
Inventia se refera la noi derivati de 1,4-benzoxazepinona printr-un procedeu de largire de ciclu a unor alfa-pirono-4-cromanone substituite, obtinându-se 1,4 -benzoxazepinone care poseda un ciclu cumarinic. Inventia reprezinta o modificare a reactiei are loc migrarea anionotropa a restului alifatic din cetona ciclica datorita actiunii activante a oxigenului din catena acestuia. Substantele preparate sunt caracterizate analitic si spectral, randamentele fiind foarte bune.
RO127033A1987-02-161987-02-16Derivati de 1,4-benzoxazepinona si procedeu pentru prepararea lor
RO96410B1
(ro)