Trifluoroacetic acid → HCID 59250098, compound

Participants

Reaction Steps

Ethyl-[2-(2-formyl-3-methyl-4-oxo-4,6,7,8-tetrahydro-1H-pyrrolo[3,2-c]azepin-5-yl)-ethyl]-carbamic acid tert-butyl ester 62f (43 mg, 0.118 mmol) was dissolved in 10 ml of dichloromethane under stirring, and added with trifluoroacetic acid (272 μl, 3.55 mmol) to the solution and stirred for 15 minutes in an ice-water bath. After thin lay chromatography showed the disappearance of starting materials, the reaction mixture was concentrated under reduced pressure to obtain the title compound 5-(2-ethylamino-ethyl)-3-methyl-4-oxo-1,4,5,6,7,8-hexahydro-pyrrolo[3,2-c]azepine-2-carbaldehyde 62j to be used directly in the next step.

Provenance & Evidence