A small series of 2,4-dioxothiazolidinyl acetic acids was prepared from thiourea, chloroacetic acid, aromatic aldehydes, and ethyl-2-bromoacetate. They were assayed for the inhibition of four physiologically relevant carbonic anhydrase (CA, EC 4.2.1.1) isoforms of human (h) origin, the cytosolic hCA I and II, and the transmembrane hCA IX and XII, involved among others in tumorigenesis (hCA IX and XII) and glaucoma (hCA II and XII). The two cytosolic isoforms were not inhibited by these carboxylates, which were also rather ineffective as hCA IX inhibitors. On the other hand, they showed submicromolar hCA XII inhibition, with KIs in the range of 0.30-0.93 µM, making them highly CA XII-selective inhibitors.

中文翻译：

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一类碳酸酐酶IX / XII-选择性羧酸盐抑制剂。

从硫脲，氯乙酸，芳族醛和-2-溴乙酸乙酯制备了少量的2,4-二氧噻唑啉基乙酸。测定了它们对人（h）来源的四种生理相关的碳酸酐酶（CA，EC 4.2.1.1）亚型，胞质hCA I和II以及跨膜hCA IX和XII的抑制作用，其中hCA IX和XII参与了肿瘤的发生（hCA）。 IX和XII）和青光眼（hCA II和XII）。这些羧酸盐未抑制这两种胞质同工型，它们作为hCA IX抑制剂也相当无效。另一方面，它们显示出亚微摩尔hCA XII抑制作用，KI的范围为0.30-0.93 µM，使其成为高度CA XII选择性抑制剂。