Patent ID: 11866446
Assignee: VERTEX PHARMACEUTICALS INCORPORATED
Field: Organic fine chemistry (Chemistry)
Classification: CPC C  A | IPC C

Claim 1:
2. The compound, tautomer, deuterated derivative, or pharmaceutically acceptable salt according to claim 1, wherein the compound is represented by one of the following structural formulae:, , or is a tautomer thereof, a deuterated derivative of that compound or tautomer, or a pharmaceutically acceptable salt of any of the foregoing, wherein:
R2a is selected from hydrogen, halogen, cyano, and C1-C4 alkyl; wherein:
the C1-C4 alkyl of R2a is optionally substituted with 1 to 3 groups independently selected from halogen, —OH, and C1-C2 alkoxy;

R2b is selected from hydrogen, halogen, cyano, and C1-C4 alkyl; and
k is an integer selected from 0, 1, and 2.