N-bromobutanimide → HCID 18473268, compound

Participants

Reaction Steps

Utilizing an analogous procedure as described in Example 26, 4-chloro-(5-phenyl)-7H-pyrrolo[2,3-d] pyrimidine, the intermediate, was made in 74% yield from 7-benzenesulfonyl-4-chloro-5iodo-7H-pyrrolo[2,3-d]pyrimidine and 3-bromo benzene boronic acid: TS-MS: 230 (MH+) This second intermediate was coupled with 3-bromoaniline in methanol in a sealed tube to provide (3-bromo-phenyl)-[5-(4-chloro-phenyl)7H-pyrrolo[2,3-d]pyrimidin-4-yl]-amine in 75% yield: TSMS: 365 (MH+). (3-bromo-phenyl)-[5-(4-chloro-phenyl)-7H-pyrrolo[2,3-d]pyrimidin-4-yl]-amine was brominated with N-bromosuccinimide impregnated onto silica gel. The reaction was complete after stirring at room temperature under nitrogen for 1.5 hours. The reaction was filtered and concentrated in vacuo to provide the title compound as a gray solid in 28% yield (128 mg): MP.: dec 300° C.; TSMS: 445/447 (MH+/MH+2); anal. RP1 8-HPLC RT=7.223 minutes.

Provenance & Evidence