Patent ID: 11919923
Assignee: VIGONVITA LIFE SCIENCES CO., LTD.
Field: Organic fine chemistry (Chemistry)
Classification: CPC C  A  Y | IPC A  C

Claim 18:
19. The pharmaceutical composition of claim 15, wherein
R1 is cyano;
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;
R4 is hydrogen;
R5 is selected from the group consisting of propionyl, isobutyryl, pivaloyl, α-aminoisovaleryl, 2-ethylbutanoyl, and 3,3-dimethylbutanoyl;
R6 is amino;
R7 is hydrogen;
R8 is hydrogen or deuterium; and
X is —CH2— or —CD2-.