Synthesis of a Novel Pentagastrin-Drug Conjugate for a Targeted Tumor Therapy
作者:Lutz F. Tietze、Olaf Panknin、Felix Major、Birgit Krewer
DOI:10.1002/chem.200701521
日期:2008.3.17
The synthesis of the novel pentagastrin seco-CBI conjugate 3, which is based on the highly cytotoxic antitumor antibiotic (+)-duocarmycin SA (1), is reported. A key step in the synthesis is the palladium-catalyzed carbonylation of aryl bromide 7 to give the benzyl ester 16, which is transformed into the new seco-CBI derivative 21 bearing a carboxylic acid ester moiety. Subsequent transformation of