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Dalton Trans. 2009 Feb 14;(6):918-21. doi: 10.1039/b816249b. Epub 2008 Nov 18.

Structural and biological investigation of ferrocene-substituted 3-methylidene-1,3-dihydro-2H-indol-2-ones.

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  • 1School of Science, University of Greenwich at Medway, Chatham Maritime, UKME4 4TB. j.spencer@gre.ac.uk

Abstract

The Knoevenagel condensation of 1,3-dihydro-2H-indol-2-one with ferrocene carboxaldehyde afforded an approximate 2:1 mixture of the geometrical isomers (E)- and (Z)-3-ferrocenylmethylidene-1,3-dihydro-2H-indol-2-one respectively in an overall 67% yield; the air and solution-stable isomers were readily separated by preparative thin layer chromatography and their structures were unequivocally elucidated in solution, by (1)H NMR spectroscopy, and in the solid phase, by X-ray crystallography; both isomers of displayed in vitro toxicity against B16 melanoma and Vero cell lines in the micromolar range and inhibited the kinase VEGFR-2 with IC(50) values of ca. 200 nM.

PMID:
19173072
[PubMed - indexed for MEDLINE]
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