Hydrochloric Acid → HCID 86695150, compound

Participants

Reaction Conditions

Reaction Steps

Into a 50-mL round-bottom flask was placed a solution of tert-butyl N-(4-[[(3R)-3-[(2S)-2-[(tert-butyldimethylsilyl)oxy]-2-carbamoylethyl]-7-thia-9,11-diazatricyclo[6.4.0.0[2,6]]dodeca-1(8),2(6),9,11-tetraen-12-yl]oxy]cyclohexyl)-N-ethylcarbamate (160 mg, 0.26 mmol, 1.00 equiv) and hydrogen chloride (conc.) (0.3 mL) in dichloromethane (3 mL). The resulting solution was stirred for 1 h at 0° C. The resulting mixture was concentrated under vacuum. The crude product (200 mg) was purified by preparative HPLC under the following conditions (1#-Pre-HPLC-015(Waters)): column: Xbridge Prep C18, 5 um, 19*50 mm; mobile phase: water with 50 mmol NH4HCO3 and CH3CN (10% CH3CN up to 25% in 10 min, up to 95% in 1.5 min, down to 10% in 1.5 min); detector: 254/220 nm. 47.3 mg product was obtained. This resulted in 47.3 mg (45%) of (2S)-3-[(3R)-12-[[4-(ethylamino)cyclohexyl]oxy]-7-thia-9,11-diazatricyclo[6.4.0.0[2,6]]dodeca-1(8),2(6),9,11-tetraen-3-yl]-2-hydroxypropanamide as a white solid. MS: m/z 405 (M+H)+. 1H NMR (300 MHz, CD3OD): δ 8.474 (1H, s), 5.24-5.26 (1H, m), 4.08-4.12 (1H, d), 3.53 (1H, m), 3.04-3.28 (1H, m), 2.92-2.95 (1H, m), 2.50-2.71 (4H, m), 2.40-2.47 (2H, m), 2.15-2.23 (2H, m), 1.98-2.07 (2H, m), 1.61-1.96 (3H, m), 1.26-1.34 (2H, m).

Provenance & Evidence