3-Cyanobenzene-1-sulfonyl chloride → HCID 66788894, compound

Participants

Reaction Steps

4-{[4-(3-Carbamoyl-benzenesulfonyl)-3,4-dihydro-2H-benzo[1,4]oxazine-6-carbonyl]-amino}-2-fluoro-benzoic acid, MS (ISP): m/e=500.0 (M+H+.), was prepared as described for example 21, steps 1 to 8. Step 7 was performed using 3-cyano-benzenesulfonyl chloride and yielded 4-{[4-(3-cyano-benzenesulfonyl)-3,4-dihydro-2H-benzo[1,4]oxazine-6-carbonyl]-amino}-2-fluoro-benzoic acid ethyl ester, which was hydrolyzed in step 8 at both the carboxylic acid ester and the cyano position.

Provenance & Evidence