571202-87-4Relevant articles and documents
CELL-PENETRATING FLUORESCENT DYES WITH SECONDARY ALCOHOL FUNCTIONALITIES
-
Page/Page column 31; 65; 66, (2018/03/28)
The invention relates to novel cell-penetrating fluorescent dyes with with secondary alcohol functionalities having one of the following general formulae I-III and 4: The invention also relates to the use of these compounds for optical microscopy and imaging techniques.
Total syntheses of murrayamine E, I, and K
Schuster, Christian,Julich-Gruner, Konstanze K.,Schnitzler, Heinrich,Hesse, Ronny,J?ger, Anne,Schmidt, Arndt W.,Kn?lker, Hans-Joachim
, p. 5666 - 5673 (2015/06/16)
We describe efficient synthetic routes to murrayamine A (mukoenine C), O-methylmurrayamine A, mahanine, O-methylmahanine, and murrayamine D and the first total syntheses of murrayamine E, I, and K. Key steps are a palladium-catalyzed construction of the carbazole framework and an annulation of the pyran ring, which is either catalyzed by phenylboronic acid or promoted by a Lewis acid.
Total synthesis of 7- and 8-oxygenated pyrano[3,2-a]carbazole and pyrano[2,3-a]carbazole alkaloids via boronic acid-catalyzed annulation of the pyran ring
Julich-Gruner, Konstanze K.,Kataeva, Olga,Schmidt, Arndt W.,Knoelker, Hans-Joachim
supporting information, p. 8536 - 8540 (2014/07/21)
The boronic acid-catalyzed annulation of citral opens up a short route to oxygenated cyclized monoterpenoid pyranocarbazole alkaloids. Thus, murrayamine-D is available in only three steps and 55% overall yield from the corresponding carbazole precursor.