期刊
JOURNAL OF MEDICINAL CHEMISTRY
卷 56, 期 1, 页码 46-59出版社
AMER CHEMICAL SOC
DOI: 10.1021/jm300844m
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资金
- National Health and Medical Research Council (Australia)
- Australia Research Council
- Australian Cancer Research Foundation
- Ramaciotti Foundation
- Children's Medical Research Institute
- Newcastle Innovation
Focused library development of our lead 2-cyano-3-(1-(3-(dimethylamino)-propyl)-2-methyl-1H-indol-3-yl)-N-octylacrylamide (2) confirmed the tertiary dimethylamino-propyl moiety as critical for inhibition of dynamin GTPase. The cyanoamide moiety could be replaced with a thiazole-4(5H)-one isostere (19, IC50(dyn I) = 7.7 mu M), reduced under flow chemistry conditions (20, IC50(dyn I) = 5.2 mu M) or replaced by a simple amine. The latter provided a basis for a high yield library of compounds via a reductive amination by flow hydrogenation. Two compounds, 24 (IC50(dyn I) = 0.56 mu M) and 25 (IC50(dyn I) = 0.76 mu M), stood out. Indole 24 is nontoxic and showed increased potency against dynamin I and II in vitro and in cells (IC50(CME) = 1.9 mu M). It also showed 4.4-fold selectivity for dynamin I. The indole 24 compound has improved isoform selectivity and is the most active in-cell inhibitor of clathrin-mediated endocytosis reported to date.
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