Diisopropylethylamine → HCID 58981737, compound

Participants

Reaction Steps

To 154 mg (0.31 mmol) of N-[(2S,3S)-3-amino-2-hydroxyheptyl]-2-pyridinesulfonamide hydrochloride & N-[(2R,3S)-3-amino-2-hydroxyheptyl]-2-pyridinesulfonamide in 3 mL of dimethylformamide, 132 mg (0.31 mmol) of (1S)-1-{[4-(1H-imidazol-1-yl)phenoxy]methyl}-2,2-dimethylpropyl 4-nitrophenyl carbonate was added, followed by 0.25 mL (1.43 mmol) of N,N-diisopropylethylamine. The reaction mixture was stirred for 18 h at room temperature. It was concentrated, a saturated sodium bicarbonate solution was added, and the mixture was extracted with ethyl acetate. The organic layer was washed with a saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate, filtered, and concentrated. The residue was purified by silica gel column chromatography eluting with an methanol:chloroform solution (1:9) to yield 101.3 mg (57%) of (1S)-1-{[4-(1H-imidazol-1-yl)phenoxy]methyl}-2,2-dimethylpropyl (1S)-1-{(1S)-1-hydroxy-2-[(2-pyridinylsulfonyl)amino]ethyl}pentylcarbamate and (1S)-1-{[4-(1H-imidazol-1-yl)phenoxy]methyl}-2,2-dimethylpropyl (1S)-1-{(1R)-1-hydroxy-2-[(2-pyridinylsulfonyl)amino]ethyl}pentylcarbamate. ES-LCMS m/z 574 (M+H) Rt=2.7 min.

Provenance & Evidence