Ethyl isocyanate → Ethyl-carbamic acid 3-[2,3-dimethoxy-6-(1-oxo-indan-4-yl)-phenoxymethyl]-oxetan-3-ylmethyl ester

Participants

Reaction Conditions

Reaction Steps

To a stirring solution of 4-[2-(3-Hydroxymethyl-oxetan-3-ylmethoxy)-3,4-dimethoxy-phenyl]-indan-1-one (Compound 104)(100 mg, 0.2604 mmol) in dichloromethane (15 mL), were added triethylamine (0.1 mL, 0.772 mmol) and ethyl isocyanate (55 mg, 0.78 mmol) and the resultant reaction mixture was heated to 50° C. for 16 h. The reaction mixture was quenched with sodium bi carbonate solution and extracted with dichloromethane (3×). The combined dichloromethane layer was washed with brine and dried over anhydrous sodium sulphate and concentrated under reduced pressure. Purification by column chromatography (silica gel, 0-25% ethyl acetate in pet ether) to afforded the title compound as a solid.

Provenance & Evidence