| CPC A61K 51/04 (2013.01) [A61P 9/00 (2018.01); C07B 59/002 (2013.01); C07C 277/08 (2013.01); C07C 279/08 (2013.01); C07D 251/08 (2013.01); C07B 2200/05 (2013.01)] | 18 Claims |

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1. A compound according to following formula
![]() wherein R1 is F.
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