Patent ID: 11970479
Assignee: MSD R&D (CHINA) CO. LTD.
Field: Organic fine chemistry (Chemistry)
Classification: CPC A  C | IPC C

Claim 6:
7. The compound of claim 1 or a pharmaceutically acceptable salt thereof, wherein R5 is selected from:
(1) 2,2-dimethylpropyl,
(2) 2,2-difluorobutyl,
(3) 3-methylbutyl,
(4) 3-fluoro-3-methylbutyl,
(5) neopentyl,
(6) 1-(methylcyclopentyl)methyl,
(7) 1-(fluorocyclopentyl)methyl,
(8) cyclopentyl-3,3,3-trifluoro-2,2-dimethylpropyl,
(9) 1-(cyclohexylmethyl), and
(10) (1-(trifluromethyl)cyclopropyl)methyl.