Patent ID: 11897898
Assignee: BIOGEN MA INC.
Field: Pharmaceuticals (Chemistry)
Classification: CPC C  A | IPC A  C

Claim 4:
5. The compound of claim 1, wherein:
R2 in each occurrence is independently selected from C1-6 alkyl, —CN, —C(O)R2a, —C(O)OR2a, —C(O)N(R2a)2, —NO2, —N(R2a)2, —N(R2a)C(O)R2a, —N(R2a)C(O)OR2a, —OR2a, —OC(O)R2a, and —OC(O)N(R2a)2, wherein said C1-6 alkyl is optionally substituted with one to four R20;
R2a in each occurrence is independently H or C1-6 alkyl, wherein said C1-6 alkyl in each occurrence is optionally and independently substituted with one to three R20; and
R20 in each occurrence is independently halo or —R20a; and
R20a in each occurrence is independently H or C1-6 alkyl.