CPC A61K 38/16 (2013.01) [A61P 43/00 (2018.01)] | 25 Claims |
1. A compound having the structure of formula I-a, I-b, or I-c:
or a pharmaceutically acceptable salt thereof, wherein:
X and Y each are independently selected from the group consisting of —OR4, NR5R6, C1-6 alkyl and haloC1-6 alkyl;
each R4 is independently selected from the group consisting of hydrogen, C1-6 alkyl, haloC1-6 alkyl, C6-10 aryloxy and C6-10 aryl alkoxy;
each R5 is independently hydrogen or C1-6 alkyl;
each R6 is independently hydrogen or C1-6 alkyl; and
Z1 is selected from the group consisting of hydrogen, C1-6 alkyl, haloC1-6 alkyl, haloC1-6 alkoxy, C1-6 alkoxy, C3-10 cycloalkyl and C6-10 aryl; and
Z2 is selected from the group consisting of hydrogen, C1-6 alkyl, haloC1-6 alkyl, haloC1-6 alkoxy, C1-6 alkoxy, C3-10 cycloalkyl and C6-10 aryl.
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