| CPC C07D 401/04 (2013.01) [A61P 35/00 (2018.01); C07D 401/14 (2013.01); C07D 405/14 (2013.01); C07D 413/14 (2013.01)] | 16 Claims |
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1. A compound of the formula
![]() wherein
R1 is iodo;
R2 is —NH(CH2)3-morpholinyl;
R3 is chloro, fluoro, bromo, or iodo; and
R4 is C1-C6 alkyl;
or a pharmaceutically acceptable salt thereof.
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