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. Author manuscript; available in PMC: 2016 Jun 5.
Published in final edited form as: Medchemcomm. 2015 Jun 5;6:1278–1284. doi: 10.1039/C5MD00198F

Fig 1.

Fig 1

Discovery of 2,7-disubstituted fluorenone 3 as UT-A1 inhibitor. A. Structure of 3 and concentration-inhibition data for inhibition of rat UT-A1 and UT-B urea transporters. Fitted parameters: IC50 1uM and 1.5uM, Hill coefficient 0.9 and 1.1, for UT-A1 and UT-B respectively. B. Strategy for analogs synthesis for SAR analysis.