2H4G:
reference: Monocyclic thiophenes as protein tyrosine phosphatase 1B inhibitors: Capturing interactions with Asp48., Wan ZK, Lee J, Xu W, Erbe DV, Joseph-McCarthy D, Follows BC, Zhang YL, Bioorg Med Chem Lett. 2006 Sep 15;16(18):4941-5. Epub 2006 Jun 27. PMID: 16806920

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