N,N-Dimethyl-1,3-propanediamine → HCID 70489094, compound

Participants

Reaction Steps

To a solution of benzyl 2-[(3S,4S)-4-allyl-3-phthalimido-2-oxo-azetidin-1-yl]-3-methyl-2-butenoate (340 mg) in a mixture of methylene chloride (5 ml) and methanol (2.5 ml) was added N,N-dimethyl-1,3-propanediamine (0.21 ml) and the mixture was stirred at room temperature for 25 hours. After removal of the solvent by evaporation, the residue was dissolved in ethyl acetate and washed with water. Drying over magnesium sulfate and evaporation gave an oil, which was chromatographed on silica gel (3 g) eluting with a mixture of methylene chloride and acetone (6:1) to give benzyl 2-[(4S)-4-allyl-3-amino-2-oxoazetidin-1-yl]-3-methyl-2-butenoate (155 mg) as an oil.

Provenance & Evidence