期刊
BIOORGANIC & MEDICINAL CHEMISTRY
卷 22, 期 5, 页码 1522-1528出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bmc.2014.01.043
关键词
Carbonic anhydrase; Inhibitor; Sulfocoumarin; Tumor-associated isoform IX, XII; Tetrazole
资金
- FP7 EU Grant (METOXIA)
- FP7 EU Grant (DYNANO)
A series of 6-substituted sulfocoumarins incorporating substituted-1,2,3,4-tetrazol-5-yl moieties were synthesized by reaction of 6-iodo-sulfocoumarin and the corresponding tetrazole via the CH activation reaction. The new sulfocoumarins incorporating alkyl and substituted aryl moieties at the 1-position of the tetrazole, were investigated for the inhibition of four human (h) carbonic anhydrase (hCA, EC 4.2.1.1) isoforms, the cytosolic hCA I and II; and the transmembrane, tumor-associated hCA IX and XII. The tetrazole-substituted sulfocoumarins did not inhibit the ubiquitous, off-target cytosolic isoforms (K(I)s > 10 mu M) but showed effective inhibition against the two transmembrane CAs, with KIs ranging from 6.5 to 68.6 nM against hCA IX, and between 4.3 and 59.8 nM against hCA XII. As hCA IX and XII are validated anti-tumor targets, such prodrug, isoform-selective inhibitors as the sulfocoumarins reported here, may be useful for identifying suitable drug candidates for clinical trials. (C) 2014 Elsevier Ltd. All rights reserved.
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