| CPC C07F 9/3808 (2013.01) [A61P 29/00 (2018.01); C07F 9/301 (2013.01)] | 17 Claims |
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1. A compound, comprising the chemical structure:
![]() wherein:
X=COOH,
R1=4-F, 2,4-diF, 3,4-diF, 3,5-diF, or 4-OCH3,
R2=H, 3-F, 3-Cl, 2-CH3 or 3-CH3,
R3=H or F, and
R4=H or CH3.
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