1152668-55-7Relevant academic research and scientific papers
Synthesis and biological evaluation of 4 arylcoumarin analogues as tubulin-targeting antitumor agents
Mutai, Peggoty,Breuzard, Gilles,Pagano, Alessandra,Allegro, Diane,Peyrot, Vincent,Chibale, Kelly
, p. 1652 - 1665 (2017/02/26)
The synthesis of twenty-six 4-arylcoumarin analogues of combretastatin A-4 (CA-4) led to the identification of two new compounds (25 and 26) with strong cytotoxic activity. Both compounds had a high cytotoxic effect on a CA-4-resistant colon adenocarcinoma cell line (HT29D4). The compounds affected cell cycle progression characterized by a mitotic block. The activity of these compounds against microtubules both in vitro and in cells was examined and both compounds were found to potently inhibit in vitro microtubule formation via a sub-stoichiometric mode like CA-4. By immunofluorescence, it was observed that both compounds induced strong microtubule network disruption. Our results provide a strong experimental basis to develop new potent anti-tubulin molecules targeting CA-4-resistant cancer cells.
[Pd(PPh3)2 (saccharinate)2]- general catalyst for Suzuki-Miyaura, Negishi cross-coupling and C-H bond functionalization of coumaryl and pyrone substrates
Shah, Parin,Santana, M. Dolores,García, Joaquín,Serrano, J. Luis,Naik, Minal,Pednekar, Suhas,Kapdi, Anant R.
supporting information, p. 1446 - 1453 (2013/02/25)
The potential of complex [Pd(PPh3)2(saccharinate) 2] 1 in catalyzing Suzuki-Miyaura cross-coupling of 4-halo and 4-bromomethyl coumaryl and pyrone substrates with different aryl boronic acids has been explored. Excellent yields of the desired products are obtained in competitive reaction time and under relatively mild conditions. Negishi cross-coupling of 4-coumaryl tosylate with aryl and alkylzinc reagents has also been performed with good yields of the cross-coupled products obtained in most cases. Intra-molecular C-H bond functionalization of coumaryl ethers also furnished very high yields of synthetically attractive tetracyclic ring systems exhibiting the potential of 1 as a powerful catalyst in synthetically important reactions.
Palladium-catalyzed direct arylation of 4-hydroxycoumarins with arylboronic acids via C-OH bond activation
Luo, Yong,Wu, Jie
supporting information; experimental part, p. 2103 - 2105 (2009/07/17)
Operationally simple PdCl2-catalyzed direct arylation of 4-hydroxycoumarins with arylboronic acids via C-OH bond activation under mild conditions is described, which gave rise to the corresponding 4-arylcouamrins in good to excellent yields.
