TMC-264 (1) was isolated as an inhibitor of IL-4 signaling from the fermentation broth of a fungus Phoma sp. TC 1674 by Tanabe Seiyaku group in 2003. 1 This compound has been found to inhibit selectively both tyrosine phosphorylation of STAT6 and the complex formation of phosphorylated STAT6 with its recognition sequence. TMC-264 has been expected as an antiallergic agent. 1 and 2 The structure of TMC-264 was elucidated to be the tricyclic structure including ...
[d'Alessandro, Nicola; Bianchi, Giorgio; Fang, Xingwang; Jin, Famin; Schuchmann, Heinz-Peter; Von Sonntag, Clemens Journal of the Chemical Society. Perkin Transactions 2, 2000 , # 9 p. 1862 - 1867]