Trifluoroacetic acid → HCID 90038055, compound

Participants

Reaction Steps

In a similar manner to that described for Example 89 Step 2 except the reaction was stirred 45 min., (S)-tert-butyl 9-bromo-5-((2-methylnaphthalen-1-yl)methyl)-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-ylcarbamate (40 mg, 78.2 μmol) in DCM (2 mL) was cooled to 0° C. and treated with TFA (300 μl). After 45 min, the mixture was concentrated to dryness and the residue azeotroped with MeCN to afford (S)-3-amino-9-bromo-5-((2-methylnaphthalen-1-yl)methyl)-2,3-dihydrobenzo[b][1,4]oxazepin-4 (5H)-one trifluoroacetate (41 mg), which was used without purification.

Provenance & Evidence