{1-[4-(6-Fluoro-4-oxo-2-phenyl-4H-chromen-3-yl)-phenyl]-cyclobutyl}-carbamic acid tert-butyl ester → (1-[4-(2,6-Dioxo-8-phenyl-3,6-dihydro-2H-chromeno[7,8-d]oxazol-7-yl)-phenyl]-cyclobutyl)-carbamic acid tert-butyl ester

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Reaction Steps

Following the procedure used to prepare {1-[4-(6-fluoro-4-oxo-2-phenyl-4H-chromen-3-yl)-phenyl]-cyclobutyl}-carbamic acid tert-butyl ester, 7-iodo-8-phenyl-3H-chromeno[7,8-d]oxazole-2,6-dione was reacted to give the title compound as a yellow oil (66 mg, 48%). LCMS (Method G): RT=3.95, [M+H]+=525.

Provenance & Evidence