34844-79-6Relevant articles and documents
1,3-dipolar cycloaddition in the preparation of new fused heterocyclic compounds via thermal initiation
Porubsky, Martin,Tenora, Luká?,Potá?ek, Milan,Rizzacasa, Mark
, (2016)
This paper describes the synthesis of precursors with a benzo[b]furan skeleton for the intramolecular 1,3-dipolar cycloaddition of azomethine ylides prepared from N-substituted 3-allyl-aminobenzo[b]furan-2-aldehydes and secondary amines derived from α-amino acid esters. Reactions were initiated by heating. The products consisted of four fused rings with three stereogenic centers. Their structure and stereochemistry were determined by NMR spectra and X-ray measurements.
Tyrosine kinase inhibitors. 16. 6,5,6-Tricyclic benzothieno[3,2-d]pyrimidines and pyrimido[5,4-b]- and -[4,5- b]indoles as potent inhibitors of the epidermal growth factor receptor tyrosine kinase
Showalter, H. D. Hollis,Bridges, Alexander J.,Zhou, Hairong,Sercel, Anthony D.,McMichael, Amy,Fry, David W.
, p. 5464 - 5474 (2007/10/03)
Several elaborations of the fundamental anilinopyrimidine pharmacophore have been reported as potent and selective inhibitors of the epidermal growth factor receptor (EGFr) tyrosine kinase. This paper reports on a series of inhibitors whereby some 6,5-bicyclic heteroaromatic systems were fused through their C-2 and C-3 positions to this anilinopyrimidine pharmacophore. Although the resulting tricycles did not produce the enormous potency of some of the (5/6),6,6-bicyclic systems, the best of them had IC50s for the EGFr TK around 1 nM. Investigation of 4-position side chains in the indolopyrimidines confirmed that m-bromoaniline was an optimal substituent for potency. Investigation of substitution within the C-(benzo)ring of benzothienopyrimidines confirmed that introduction of an extra ring can change sharply the effects of substituents when compared to similar bicyclic nuclei, and only two substituents were found which even moderately enhanced inhibitory activity over the parent compound for this series.