Water → tert-Butyl (1-oxo-4-phenyl-1H-isochromen-3-yl)methyl(9-trityl-9H-purin-6-yl)carbamate

Participants

Reaction Steps

tert-Butyl 9-trityl-9H-purin-6-ylcarbamate (63.6 mg, 0.133 mmol) in DMF (0.1 ml) was added to a suspension of 50% dispersion in mineral oil NaH (5.33 mg, 0.133 mmol) in DMF (0.1 ml) at 0° C. 3-(bromomethyl)-4-phenyl-1H-isochromen-1-one (intermediate C1, 35 mg, 0.111 mmol) in DMF (0.2 ml) was added and the resulting mixture was allowed to warm to RT. The reaction mixture was then poured into water and extracted with EtOAc. The collected organic phases were dried and concentrated under reduced pressure and the resulting crude (80 mg) was used in the next step without any further purification and characterization.

Provenance & Evidence