| CPC C07D 277/24 (2013.01) [C07D 211/32 (2013.01); C07D 319/20 (2013.01); C07D 413/06 (2013.01); C07D 413/14 (2013.01); C07D 419/04 (2013.01); C07D 419/14 (2013.01); C07F 5/027 (2013.01)] | 7 Claims |
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1. A compound having the formula (I):
![]() or a pharmaceutically acceptable salt thereof, wherein
Ar1 is 2,3-dihydrobenzo [b] [1,4]-dioxinyl;
R1 and R2 are each, independently, alkyloxy;
R3 is alkyl; and
Q is
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