1-Isocyanato-3,5-dimethoxybenzene → 1-[(S)-3-[3-(4-chloro-phenoxy)-azetidin-1-yl]-1-hydroxymethyl-propyl)-3-(3,5-dimethoxy-phenyl)-urea

Participants

Reaction Steps

A solution of (S)-2-amino-4-[3-(4-chloro-phenoxy)-azetidin-1-yl]-butan-1-ol (0.2 g, 0.74 mmol) in dichloromethane (6 ml) is treated with 3,5-dimethoxy-phenyl-isocyanate (0.12 g, 0.667 mmol). The reaction mixture is stirred at ambient temperature for 24 hours and then evaporated. The crude product is purified by flash silica chromatography (elution gradient 3:97 to 7:93 methanol/dichloromethane) to afford 1-{(S)-3-[3-(4-chloro-phenoxy)-azetidin-1-yl]-1-hydroxymethyl-propyl}-3-(3,5-dimethoxy-phenyl)-urea. [MH]+ 449.9.

Provenance & Evidence