期刊
BIOORGANIC & MEDICINAL CHEMISTRY
卷 25, 期 20, 页码 5726-5732出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bmc.2017.08.047
关键词
Phenylacrylamides; Sulfonamide; Carbonic anhydrase; Isoforms I, II, IX and XII; Tumors
A series of novel sulfonamides incorporating phenylacrylamido functionalities were synthesized and investigated for the inhibition of the metalloenzyme carbonic anhydrase (CA, EC 4.2.1.1). The physiologically and pharmacologically relevant human (h) isoforms hCA I and II (cytosolic isozymes), as well as the transmembrane tumor-associated hCA IX and XII were included in the study. These compounds showed low nanomolar or sub-nanomolar inhibition constants against hCA II (K(I)s in the range of 0.50-50.5 nM), hCA IX (K(I)s of 1.8-228.5 nM), and hCA XII (K(I)s of 3.5-96.2 nM) being less effective as inhibitors of the off target isoform hCA I. A detailed structure-activity relationship study demonstrates that the nature and position of substituents present on the aromatic part of the scaffold strongly influence the inhibition of CA isoforms. As hCA II, IX and XII are involved in pathologies such as glaucoma and hypoxic, and metastatic tumors, compounds of the type reported in this work may be useful preclinical candidates. (C) 2017 Elsevier Ltd. All rights reserved.
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