Ethylmorpholine → HCID 69358672, compound

Participants

Reaction Steps

To a solution of 5-(2-oxo-pyrrolidin-1-yl)-N,N-dipropyl-isophthalamic acid (A80) (66 mg, 0.2 mmol, 1 equiv) in DMF (5 ml) at room temperature was added EDAC.HCl (46 mg, 0.24 mmol, 1.2 equiv), HOBT (37 mg, 0.24 mmol, 1.2 equiv), 4-ethylmorpholine (153μ, 1.2 mmol, 6 equiv) and (S)-2-((2R,3S)-3-amino-2-hydroxy-4-phenyl-butylamino)-N-cyclohexyl-propionamide di-hydrochloride (C6) (82 mg, 0.2 mmol, 1 equiv). The resulting mixture was stirred for 3 h then concentrated in vacuo. The residue was diluted in CH2Cl2 and the organic phases washed with a saturated NaHCO3 aqueous solution, dried over MgSO4 and concentrated in vacuo. Purification of the residue by preparative LC/MS gave N-[(1S,2R)-1-benzyl-3-((S)-1-cyclohexylcarbamoylethylamino)-2-hydroxypropyl]-5-(2-oxopyrrolidin-1-yl)-N′,N′-dipropylisophthalamide (E1) (78 mg, 60%) as a white foam. [M+H]+=648.3 RT=2.70.

Provenance & Evidence