A Palladium-Catalyzed Carbonylation Approach to Eight-Membered Lactam Derivatives with Antitumor Activity
作者:Raffaella Mancuso、Dnyaneshwar S. Raut、Nadia Marino、Giorgio De Luca、Cinzia Giordano、Stefania Catalano、Ines Barone、Sebastiano Andò、Bartolo Gabriele
DOI:10.1002/chem.201504443
日期:2016.2.24
was terminal, leading to the formation of carbonylated ζ‐lactamderivatives, the structures of which have been confirmed by XRD analysis. These novel medium‐sized heterocyclic compounds showed antitumor activity against both estrogen receptor‐positive (MCF‐7) and triple negative (MDA‐MB‐231) breast cancer cell lines. In particular, ζ‐lactam 3 j′ may represent a novel and promising antitumor agent because
Sequence of Intramolecular Carbonylation and Asymmetric Hydrogenation Reactions: Highly Regio- and Enantioselective Synthesis of Medium Ring Tricyclic Lactams
作者:Shui-Ming Lu、Howard Alper
DOI:10.1021/ja7111417
日期:2008.5.1
The intramolecular cyclocarbonylation reaction with palladium-complexed dendrimers on silica is a very effective method for the regioselective synthesis of methylene 8-, 9-, and 10-membered rings. The heterogeneous dendritic catalysts are easily recovered by simple filtration and reused for up to 10 cycles with only a slight loss of activity. Asymmetric hydrogenation of the resulting unsaturated heterocycles