Hydrochloric Acid → HCID 22184981, compound

Participants

Reaction Steps

2-[1-(4-(Ethoxycarbonyl)piperazin-1-yl)carbonyl-3-(1,1-dimethylethoxycarbonyl)propyl]aminocarbonyl-4-[(1-(methoxycarbonyl)-3-(1,1-dimethylethoxycarbonyl)propyl)aminocarbonyl]quinoline (170 mg, 0.229 mmol) was treated with LiOH (2.0 eq.) in a solution of THF:H2O (3:1, 12 mL). The reaction mixture was stirred at ambient temperature for 5 hours. The pH value of the reaction mixture was adjusted to between pH 3 and pH 4 with 1 N HCl solution. The reaction mixture was evaporated in vacuo to afford a crude product, which was dissolved in ethyl acetate, washed with H2O and brine. The solvent was evaporated to give 2-[1-(4-(ethoxycarbonyl)piperazin-1-yl)carbonyl-3-(1,1-dimethylethoxycarbonyl)propyl]aminocarbonyl-4-[(1-carboxy-3-(1,1-dimethylethoxycarbonyl)propyl)aminocarbonyl]quinoline (150 mg); NMR (CD3 OD) 1.30 (t, 3), 1.40 (s, 9), 1.50 (s, 9), 1.90 (m, 1), 2.15 (m, 2), 2.30-2.50 (m, 5), 3.45-3.90 (m, 8), 4.18 (q, 2), 4.75 (m, 1), 5.25 (m, 1), 7.75 (m, 1), 7.90 (m, 1), 8.25 (m, 3) ppm.

Provenance & Evidence