Patent ID: 11919923
Assignee: XINJIANG TECHNICAL INSTITUTE OF PHYSICS & CHEMISTRY. CHINESE ACADEMY OF SCIENCES
Field: Organic fine chemistry (Chemistry)
Classification: CPC C  A  Y | IPC A  C

Claim 6:
7. The compound of formula (I) of claim 1, or the pharmaceutically acceptable salts thereof, wherein,
R8 is deuterium;
R2 is OR3 or methoxy;
R3 is selected from the group consisting of hydrogen, propionyl, isobutyryl, pivaloyl, α-aminoisovaleryl, 2-ethylbutanoyl, and 3,3-dimethylbutanoyl;
R5 is selected from the group consisting of propionyl, isobutyryl, pivaloyl, α-aminoisovaleryl, 2-ethylbutanoyl, and 3,3-dimethylbutanoyl.