32454-14-1Relevant articles and documents
Complementary isonitrile-based multicomponent reactions for the synthesis of diversified cytotoxic hemiasterlin analogues
Lesma, Giordano,Bassanini, Ivan,Bortolozzi, Roberta,Colletto, Chiara,Bai, Ruoli,Hamel, Ernest,Meneghetti, Fiorella,Rainoldi, Giulia,Stucchi, Mattia,Sacchetti, Alessandro,Silvani, Alessandra,Viola, Giampietro
, p. 11633 - 11644 (2015)
A small family of structural analogues of the antimitotic tripeptides, hemiasterlins, have been designed and synthesized as potential inhibitors of tubulin polymerization. The effectiveness of a multicomponent approach was fully demonstrated by applying complementary versions of the isocyanide-based Ugi reaction. Compounds strictly related to the lead natural products, as well as more extensively modified analogues, have been synthesized in a concise and convergent manner. In some cases, biological evaluation provided evidence for strong cytotoxic activity (six human tumor cell lines) and for potent inhibition of tubulin polymerization.
Br?nsted Acid-Catalyzed Intramolecular Hydroarylation of β-Benzylstyrenes
Cai, Xiao,Keshavarz, Amir,Omaque, Justin D.,Stokes, Benjamin J.
, p. 2626 - 2629 (2017/05/24)
Using triphenylmethylium tetrakis(pentafluorophenyl)borate as a convenient Br?nsted acid precatalyst, β-(α,α-dimethylbenzyl)styrenes are shown to cyclize efficiently to afford a variety of new indanes that possess a benzylic quaternary center. The geminal dimethyl-containing quaternary center is proposed to be necessary to arm the substrate for cyclization through steric biasing.
Palladium-catalyzed arylation of vinylic acetates. Phosphine ligand influenced regioselectivity
Jean, Micka?l,Renault, Jacques,Van De Weghe, Pierre
supporting information; experimental part, p. 6546 - 6548 (2011/02/23)
A palladium-catalyzed coupling reaction of aryl bromides with vinylic acetates in the presence of tributyltin methoxide h as been described. The α-arylation aldehyde product and the aryl ketone were obtained in the presence of P(t-Bu)3 and P(o-