4ISG:
reference: Design, synthesis and SAR of novel glucokinase activators., Cheruvallath ZS, Gwaltney SL 2nd, Sabat M, Tang M, Feng J, Wang H, Miura J, Guntupalli P, Jennings A, Hosfield D, Lee B, Wu Y, Bioorg Med Chem Lett. 2013 Apr 1;23(7):2166-71. doi: 10.1016/j.bmcl.2013.01.093. , Epub 2013 Feb 4. PMID: 23434031

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