The ‘Mikami’-Catalyst in Enantioselective Diels–Alder Reactions of Juglone-Based Dienophiles with Different 1-Oxygenated Dienes: An Investigation on the Substitution Pattern Dependent Regioselectivity
作者:Jörg Pietruszka、Dietrich Böse、Wolfgang Frey
DOI:10.1055/s-0034-1378230
日期:——
investigating the substitution pattern depending regioselectivity of enantioselective BINOL-Ti-catalyzed Diels–Alderreactions of juglone-based dienophiles with 1-oxygenated dienes is reported. The different influences of residues both on the diene as well as on the dienophiles are investigated giving a detailed picture of their role on the regioselectivity. A mechanistic study investigating the substitution
Neues Verfahren zur Herstellung von Steffimycinonanalogen, so erhaltene neue Steffimycinonanaloge, neue zur Synthese dieser Verbindungen verwendbare Zwischenprodukte und Verwendung dieser Verbindungen als Bakterizide und zur Synthese von Antitumormitteln
申请人:LABORATOIRES HOECHST S.A.
公开号:EP0168515A2
公开(公告)日:1986-01-22
Vorliegende Erfindung betrifft neue Steffimycinonanaloge und Verfahren zu ihrer Herstellung.
Diese Analogen entsprechen der nachfolgenden Formel II:
Verwendung als Bakterizide und zur Herstellung von Antitumormitteln durch Kupplung mit Zuckern.
KROHN, KARSTEN;MARKUS, HELGA;KRAEMER, HANS PETER;FRANK, WALTER, LIEBIGS ANN. CHEM.,(1988) N 11, C. 1033-1041
作者:KROHN, KARSTEN、MARKUS, HELGA、KRAEMER, HANS PETER、FRANK, WALTER
DOI:——
日期:——
NEUE ANTHRACHINON-DERIVATE
申请人:Sealife Pharma GmbH
公开号:EP2435394B1
公开(公告)日:2013-05-08
New Anthraquinone Derivatives
申请人:Pretsch Alexander
公开号:US20120129927A1
公开(公告)日:2012-05-24
The invention relates to two novel substances, namely (1R,2S,3S,4R)-3-acetoxy-1,2,4,5-tetrahydroxy-7-methoxy-2-methyl-1,2,3,4-tetrahydroanthracene-9,10-dione (3-O-acetyl altersolanol M)
and 8-(4,5,6-trihydroxy-7-methyl-2-methoxy-9,10-dioxo-9H,10H-anthracen-1-yl)-(1S,2S,3R,4S)-1,2,3,4,5-pentahydroxy-7-methoxy-2-methyl-1,2,3,4-tetrahydro-9H,10H-anthracene-9,10-dione (the atropisomers alterporriol I and J)
to their use as anti-infectives and as anti-cancer agents, as well as to methods of producing the same.