v e d b i o g e n e r i c a l l y from (+)-magnoflorine ( 1 ) and magnoflorinemethine (2).
AbstractDie Struktur (I) der aus Hypecoum procumbens L. (Papaveraceae) isolierten Titelverbindung wird bestätigt.
Chilean Berberis actinacanthaMart. ex Schult. (Berberidaceae) has yielded the novel alkaloid (+)-aconcaguine (2) which is probably derived from intradiol oxidative cleavage of ring A of magnoflorinemethine(1).
Three Chilean barberries, Berberisactinacantha Mart. ex Schult., B. darwinii Hook and [ulbar|B. valdivianaPhil. (Berberidaceae), have yielded several new isoindolobenzazepine and protoberberine alkaloids. Novel isoindolobenzazepines are (±)-13-deoxychilenine (a), pictonamine (10), chileninone (12), (±)-chileniimi (18) and (±)-palmanine (19). Highly oxidized protoberberines of particular interest include (±)-O-methylprechilenine (6) and (±)-prepseudopalmanine (21), together with 13-methoxy-8-oxyberberine (8). Isoindolobenzazepine alkaloids arise biogenetically from the rearrangement of highly oxidized protoberberines.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT(+)-Turkiyenine: an unusual extension of the biogenetic sequence for the isoquinoline alkaloidsTekant Gozler, Belkis Gozler, Inge Weiss, Alan J. Freyer, and Maurice ShammaCite this: J. Am. Chem. Soc. 1984, 106, 20, 6101–6102Publication Date (Print):October 1, 1984Publication History Published online1 May 2002Published inissue 1 October 1984https://doi.org/10.1021/ja00332a069RIGHTS & PERMISSIONSArticle Views133Altmetric-Citations8LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (254 KB) Get e-Alerts Get e-Alerts
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDihydrorugosinone, a Pseudobenzylisoquinoline Alkaloid From Berberis darwinii and Berberis actinacanthaEmir Valencia, Inge Weiss, Maurice Shamma, Alejandro Urzüa, and Victor FajardoCite this: J. Nat. Prod. 1984, 47, 6, 1050–1051Publication Date (Print):November 1, 1984Publication History Published online1 July 2004Published inissue 1 November 1984https://pubs.acs.org/doi/10.1021/np50036a031https://doi.org/10.1021/np50036a031research-articleACS PublicationsRequest reuse permissionsArticle Views141Altmetric-Citations8LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts