Probes of the active site of norepinephrine N-methyltransferase: effect of hydrophobic and hydrophilic interactions on side-chain binding of amphetamine and .alpha.-methylbenzylamine
作者:Gary L. Grunewald、James Monn、Michael F. Rafferty、Ronald T. Borchardt、Polina Krass
DOI:10.1021/jm00352a031
日期:1982.10
ine were prepared and evaluated as inhibitors of norepinephrine N-methyltransferase (NMT). These included several alkyl side chain extended analogues (1-5), as well as the terminally hydroxylated derivatives phenylalanol (6a) and phenylglycinol (7a). None of the alkyl-substituted derivatives displayed appreciable activity as inhibitors; however, the hydroxylated analogues were up to twofold more potent
New C5-Alkylated Indolobenzazepinones Acting as Inhibitors of Tubulin Polymerization: Cytotoxic and Antitumor Activities
作者:Laurent Keller、Stéphane Beaumont、Jian-Miao Liu、Sylviane Thoret、Jérôme S. Bignon、Joanna Wdzieczak-Bakala、Philippe Dauban、Robert H. Dodd
DOI:10.1021/jm701466p
日期:2008.6.1
A series of 5-alkylindolobenzazepin-7-ones was synthesized by Suzuki coupling between 3-iodoindole-2-carboxylates and the appropriate alpha-alkylbenzylamino o-boronic acids followed by cyclization to the lactam. Derivatives having a linear alkyl chain at C5 were found to be highly cytotoxic to KB cells with IC50 values in the 30-80 nM range. These compounds also inhibited the polymerization of tubulin with IC50's of 1-2 mu M. Compound 4f ((S)-5-ethyl) showed comparable antiproliferative activities (IC50's of 30-70 nM) in a variety of cancer cell lines, cell growth being arrested at the G2/M phase. Compound 4f induced apoptosis in a dose-dependent manner in three different cancer cell lines and was shown to affect cell morphology in a manner consistent with its inhibitory action on tubulin polymerization. Using the experimental model of glioma grafted on the chick chorio-allantoic membrane, local treatment with compound 4f markedly reduced tumor progression.
Metayer et al., Bulletin de la Societe Chimique de France, 1950, p. 1054
作者:Metayer et al.
DOI:——
日期:——
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