Diisopropylethylamine → 5-Chloro-thiophene-2-carboxylic acid [(S)-2-(2-ethyl-3-pyridin-2-yl-benzene-sulfonylamino)-3-((S)-3-methyl-morpholin-4-yl)-3-oxo-propyl]-amide hydro chloride

Participants

Reaction Steps

5-Chloro-thiophene-2-carboxylic acid [(S)-2-amino-3-((S)-3-methyl-morpholin-4-yl)-3-oxo-propyl]-amide (Intermediate 3) (95 mg, 0.287 mmol) was dissolved in 2 ml DCM and DIPEA (151 μl, 0.861 mmol). Intermediate 61 (81 mg, 0.287 mmol) in 2 ml DCM was slowly added and the reaction was stirred for 1.5 h. Then the solution was evaporated to dryness and purified by prep. HPLC. After lyophilization the title compound is obtained as colorless, amorphous solid. The material was dissolved in 20 ml water and 150 μl 4N HCl in dioxane were added. The solution was lyophilized again. Yield: 77 mg, 44%. MS (ES+): m/e=577.1/579.1, chloro pattern.

Provenance & Evidence