Diisopropylethylamine → HCID 18727508, compound

Participants

Reaction Steps

1-tert-Butoxycarbonyl-piperidine-4-carboxylic acid (0.61 g; 2.66 mmol) is dissolved in methylene chloride (20 mL) at ambient temperature. N-methyl-2-aminoacetic acid [4-phenyl-1-(3-phenyl-propyl)-butyl]-amide (66) (0.75 g; 2.22 mmol), N,N-diisopropylethylamine (0.63 g; 4.87 mmol) and PyBOP (1.38 g; 2.66 mmol) are added sequentially. The reaction is stirred for 14 hours at room temperature, then concentrated under reduced pressure. The residue is purified via silica gel chromatography (60%→80% ethyl acetate in hexanes) affording the desired product (67) as a clear oil. CIMS: MH+ 550

Provenance & Evidence