Piperidine → HCID 178423761, compound

Participants

Reaction Conditions

Reaction Steps

Compound (15a) is treated with 20-50% piperidine in N,N-dimethylformamide (0.1 M) to remove the Fmoc protecting group. The residue is purified by reverse phase chromatography (acetonitrile/water with 0.05% trifluoroacetic acid) and then dissolved in 95% trifluoroacetic acid-methylene chloride (0.1 M). The mixture is stirred at 25° C. for 6 h and then concentrated under reduced pressure. The residue is purified by reverse phase chromatography (acetonitrile/water with 0.05% trifluoroacetic acid) to provide the title compound.

Provenance & Evidence