Matches in SemOpenAlex for { <https://semopenalex.org/work/W1978996743> ?p ?o ?g. }
Showing items 1 to 56 of
56
with 100 items per page.
- W1978996743 endingPage "2730" @default.
- W1978996743 startingPage "2722" @default.
- W1978996743 abstract "The synthesis of (±)-vincamine ( I ), (±)-16-epi-vincamine ( XVIII ) and (±)-16-epi-21-epi-vincamine ( XVII ) from 1-ethyl-2,3,4,6,7,12-hexahydroindolo[2,3- a ]quinolizine ( IV ) and 2-chloroacrylonitrile is described. It is characterized by a novel method of oxidation of the key intermediates, (±)-deoxyvincamine ( II ) and (±)-16-epi-21-epi-deoxyvincamine ( XIII ) with oxodiperoxymolybdenum (pyridine) (hexamethylphosphoric triamide). The deoxy derivatives II and XIII were prepared by direct or stepwise acid or alkaline hydrolysis of stereoisomeric (±)-eburnane-16-carbonitriles IX-XII , obtained by reduction of the primary imonium salt V , and subsequent esterification. In some cases, the hydrolysis is accompanied by epimerization at C (16) ." @default.
- W1978996743 created "2016-06-24" @default.
- W1978996743 creator A5033227757 @default.
- W1978996743 creator A5062630248 @default.
- W1978996743 creator A5082590419 @default.
- W1978996743 date "1988-01-01" @default.
- W1978996743 modified "2023-10-09" @default.
- W1978996743 title "Synthesis of stereoisomeric vincamines" @default.
- W1978996743 doi "https://doi.org/10.1135/cccc19882722" @default.
- W1978996743 hasPublicationYear "1988" @default.
- W1978996743 type Work @default.
- W1978996743 sameAs 1978996743 @default.
- W1978996743 citedByCount "8" @default.
- W1978996743 countsByYear W19789967432020 @default.
- W1978996743 countsByYear W19789967432022 @default.
- W1978996743 crossrefType "journal-article" @default.
- W1978996743 hasAuthorship W1978996743A5033227757 @default.
- W1978996743 hasAuthorship W1978996743A5062630248 @default.
- W1978996743 hasAuthorship W1978996743A5082590419 @default.
- W1978996743 hasConcept C155647269 @default.
- W1978996743 hasConcept C178790620 @default.
- W1978996743 hasConcept C185592680 @default.
- W1978996743 hasConcept C203130289 @default.
- W1978996743 hasConcept C2776371256 @default.
- W1978996743 hasConcept C2779485729 @default.
- W1978996743 hasConcept C90932021 @default.
- W1978996743 hasConcept C94412978 @default.
- W1978996743 hasConceptScore W1978996743C155647269 @default.
- W1978996743 hasConceptScore W1978996743C178790620 @default.
- W1978996743 hasConceptScore W1978996743C185592680 @default.
- W1978996743 hasConceptScore W1978996743C203130289 @default.
- W1978996743 hasConceptScore W1978996743C2776371256 @default.
- W1978996743 hasConceptScore W1978996743C2779485729 @default.
- W1978996743 hasConceptScore W1978996743C90932021 @default.
- W1978996743 hasConceptScore W1978996743C94412978 @default.
- W1978996743 hasIssue "11" @default.
- W1978996743 hasLocation W19789967431 @default.
- W1978996743 hasOpenAccess W1978996743 @default.
- W1978996743 hasPrimaryLocation W19789967431 @default.
- W1978996743 hasRelatedWork W1986654119 @default.
- W1978996743 hasRelatedWork W2002685539 @default.
- W1978996743 hasRelatedWork W2018702811 @default.
- W1978996743 hasRelatedWork W2060966015 @default.
- W1978996743 hasRelatedWork W2063264879 @default.
- W1978996743 hasRelatedWork W2124403577 @default.
- W1978996743 hasRelatedWork W2374772239 @default.
- W1978996743 hasRelatedWork W2388959675 @default.
- W1978996743 hasRelatedWork W3087495859 @default.
- W1978996743 hasRelatedWork W4231457957 @default.
- W1978996743 hasVolume "53" @default.
- W1978996743 isParatext "false" @default.
- W1978996743 isRetracted "false" @default.
- W1978996743 magId "1978996743" @default.
- W1978996743 workType "article" @default.