CPC A61K 31/428 (2013.01) [A61K 45/06 (2013.01); A61P 35/00 (2018.01); C07D 277/82 (2013.01); C07D 277/84 (2013.01)] | 3 Claims |
1. A compound having a structure according to formula (IX):
including pharmaceutically acceptable salts thereof, wherein:
R1, R2 and R3 are each independently hydrogen or halogen;
R4 is hydrogen;
R14a and R14b are hydrogen;
R15 is C1-C6 alkyl;
R17a and R17b are hydrogen;
R19a is C1-C6 alkyl; and
R19b is hydrogen.
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