Patent ID: 11939327
Assignee: TAKEDA PHARMACEUTICAL COMPANY LIMITED
Field: Pharmaceuticals (Chemistry)
Classification: CPC C  A | IPC C

Claim 3:
4. The method according to claim 1, wherein
R1 and R2 are bonded to each other to form, together with the adjacent nitrogen atom,
(1) a morpholine ring, or
(2) an oxazepane ring optionally further substituted by 1 to 3 halogen atoms;
R3 is a C1-6 alkyl group substituted by 1 to 3 halogen atoms;
X is CH or N;
R5 is a hydrogen atom;
R6 is a hydrogen atom; and
Ring A is
(1) a benzene ring optionally further substituted by 1 or 2 halogen atoms, or
(2) a pyridine ring optionally further substituted by 1 or 2 halogen atoms.