New greenfluorescentprotein (GFP) chromophoreanalogues, namely 4-(diarylmethylene)imidazolinones (DAINs), were readily synthesized under weakly acidic conditions using a novel condensation reaction between methyl imidate (or thioimidate) and ethyl N-(diarylmethylene)glycinate. DAINs showed notable fluorescence properties. Although they were nearly non-fluorescent in the solution, visible emissions
Studies on the chemistry of<i>O,N</i>- and<i>S,N</i>-containing heterocycles. 16. Investigations on the synthesis of new tricyclic β-lactams<i>via</i>[2+2]cycloaddition reaction
作者:Susanne Pippich、Herbert Bartsch、Thomas Erker
DOI:10.1002/jhet.5570340319
日期:1997.5
Starting from methylthioimidates 1–8 a series of corresponding tricyclic β-lactams was synthesized via [2+2]cycloaddition with ketenes generated in situ from substituted acetyl chlorides. Dependent on the bicyclic starting material and on the substituent of the corresponding acetyl chloride N-acetyl derivatives were obtained as by- or sole products.
2-(4-Aminopiperidino)-3,4-dihydrochinoline, Verfahren zu ihrer Herstellung, pharmazeutische Präparate auf Basis dieser Verbindungen sowie ihre Verwendung
申请人:HOECHST AKTIENGESELLSCHAFT
公开号:EP0007525A1
公开(公告)日:1980-02-06
Verbindungen der Formel
worin n, R', R' und R3 die angegebenen Bedeutungen haben, deren physiologisch verträgliche Salze und Verfahren zu ihrer Herstellung.
Die Verbindungen besitzen wertvolle pharmakologische, insbesondere Herz-Kreislauf-wirksame Eigenschaften und sind daher als Arzneimittel geeignet.