Sodium periodate → (9-{4-[3-(4-formyl-3-(trifluoromethyl)phenyl)ureido]phenyl}-9H-purin-6-yl)-methylcarbamic acid tert-butyl ester

Participants

Reaction Steps

In a mixed solution of 10 mL of tetrahydrofuran and 5 mL of water, 324 mg (0.59 mmol) of methyl-(9-{4-[3-(3-trifluoromethyl-4-vinylphenyl)ureido]phenyl}-9H-purin-6-yl)-carbamic acid tert-butyl ester was dissolved, and 200 μL of a 0.1 M osmium tetraoxide aqueous solution and 510 mg (2.38 mmol) of sodium periodate were added thereto, and the mixture solution was stirred at room temperature for 14 hours. The reaction solution was partitioned between water and ethyl acetate, and the organic layer was washed with a saturated sodium chloride solution and concentrated under reduced pressure. The product was purified by a silica gel column (hexane:ethyl acetate=1:2) to obtain 243 mg (75%) of a target product as a white crystal.

Provenance & Evidence