N-bromobutanimide → N-{3-[5-(2-Chloro-4-pyrimidinyl)-2-(1-pyrrolidinyl)-1,3-oxazol-4-yl]phenyl}-2,6-difluorobenzenesulfonamide

Participants

Reaction Steps

Following a procedure analogous to the procedure described in Intermediate 6 using N-{3-[(Z)-2-(2-chloro-4-pyrimidinyl)-1-hydroxyethenyl]phenyl}-2,6-difluorobenzenesulfonamide (2.0 g, 4.72 mmol, NBS (0.924 g, 5.19 mmol) and 1-pyrrolidinecarboxamide (1.077 g, 9.44 mmol) heated to 90° C. for 24 h the title compound of Step A was obtained as an orange solid (0.980 g). MS-ESI m/z 518 (M+H).

Provenance & Evidence