Diisopropylethylamine → HCID 178495690, compound

Participants

Reaction Steps

A mixture of methyl {(1R)-2-[(2S)-2-(9-{2-[(2S,4S)-4-(methoxymethyl)pyrrolidin-2-yl]-1H-imidazol-5-yl}-1,11-dihydroisochromeno[4′,3′:6,7]naphtho[1,2-d]imidazol-2-yl)pyrrolidin-1-yl]-2-oxo-1-phenylethyl}carbamate (55 mg, 0.077 mmol), (S)-2-(methoxycarbonylamino)-3-methylbutanoic acid (14 mg, 0.077 mmol), HATU (32 mg, 0.085 mmol) and 0.4 mL 10% DIPEA in DMF was stirred at room temperature for 1 hour. The product was purified by reverse phase HPLC. The product was converted to the free base by dissolution in 2 mL 1:1 acetonitrile:methanol and passage through a prepacked cartridge of polymer supported carbonate. The eluent was concentrated, the taken up in 1% TFA in 1:1 acetonitrile:water, frozen, and lyophilized to give the product as a trifluoroacetate salt. (30.7 mg)

Provenance & Evidence