Diisopropylethylamine → HCID 178446307, compound

Participants

Reaction Steps

BOP (88 mg, 0.2 mmol) was added to a solution of (S)-3-amino-N-pentyl-N-[2′-(1H-tetrazol-5-yl)biphenyl-4-ylmethyl]succinamic acid methyl ester (100 mg, 0.2 mmol), 2-acetylsulfanylmethyl-4-methylpentanoic acid (41 mg, 0.2 mmol) and DIPEA (34 μL) in DMF (1.5 mL) at room temperature. After 10 minutes, DIPEA (30 μL) was added. After 4 hours, the mixture was concentrate in vacuo. A solution of the concentrate in MeOH (1.0 mL), 1M aq. NaOH (1.0 mL) and 6M aq. NaOH (0.1 mL) was stirred under a nitrogen atmosphere at room temperature. After 3 hours, the mixture was neutralized with 6M aq. HCl, and was concentrated in vacuo. Reverse phase HPLC afforded the title compound (11.9 mg). MS m/z: [M+H]+ calcd for C30H40N6O4S, 581.28. found 581.4.

Provenance & Evidence