Hydrochloric Acid → HCID 69754858, compound

Participants

Reaction Steps

BOC-1,3-diaminopropane was reacted with Fmoc-OSu in dichloromethane in the presence of DIPEA, and the resulting product treated with 4M HCl in dioxane to afford Fmoc-1,3-diaminopropane hydrochloride in quantitative yield. To a solution of Fmoc-diaminopropane hydrochloride (1.1 g, 3.3 mmol), Compound 1 (1.27 g, 3.3 mmol) and Py-BOP (1.46 g, 3.3 mmol) in DMF (10 ml), was added DIPEA (1.15 ml, 6.6 mmol) and the mixture was stirred for 4 hours at room temperature. The reaction mixture was diluted with EtOAc (200 ml), washed with water, saturated aqueous sodium hydrogen carbonate, 1M aqueous potassium hydrogen sulphate, brine, and concentrated under reduced pressure to afford Compound 22 as a white solid that was triturated with hexane, collected by filtration and dried in vacuo.

Provenance & Evidence