期刊
JOURNAL OF MEDICINAL CHEMISTRY
卷 58, 期 9, 页码 3975-3983出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jmedchem.5b00523
关键词
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资金
- European Regional Development Fund [2014/0019/2DP/2.1.1.1.0/14/APIA/VIAA/062]
- EU FP7 ITN Project Dynano
6-Substituted sulfocoumarins bearing the carboxamido, trimethylammonium as well as the cyano and methoxy moieties with interesting inhibitory activity/selectivity against the tumor associated carbonic anhydrase (CA, EC 4.2.1.1) isoforms hCA IX and XII are reported. Moieties leading to the best inhibition were tert-butylcarboxamido, phenylcarboxamido, and 4-pyridylcarboxamido, with K-I values of 2.1-8.1 nM. No inhibition of the off-target hCA II and I was observed. A number of these compounds were evaluated against HT-29 colon cancer cell lines ex vivo. Compounds 9c and 9e revealed effective cytotoxic effects after 72 h of incubation in both normoxic and hypoxic conditions, unlike sulfonamide CA inhibitors that show such effects only in hypoxia. These results may be of particular importance for the choice of future drug candidates targeting hypoxic tumors and metastases, considering the fact that a sulfonamide CA IX inhibitor (SLC-0111) is presently in phase I clinical trials.
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