Diisopropylethylamine → HCID 54120602, compound

Participants

Reaction Conditions

Reaction Steps

(S)-4-Methyl-2-methylamino-pentanoic acid tert-butyl ester (6 g, 29.8 mmol) was dissolved in THF (250 mL) and treated with diisopropylethylamine (7.8 mL, 44.7 mmol) and p-t-butyl-benzyl bromide (6.03 mL, 32.8 mL). The reaction was heated to 40° C. overnight, then filtered and concentrated. The residue was chromatographed on silica gel eluting with 5% EtOAc/hexanes to give 5.1 g (50%) of (S)-2-[(4-tert-Butyl-benzyl)-methyl-amino]-4-methyl-pentanoic acid tert-butyl ester.

Provenance & Evidence