1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole → (1-{4-[8-(1-Methyl-1H-pyrazol-4-yl)-4-oxo-2-phenyl-4H-pyrano[2,3-c]pyridin-3-yl]-phenyl}-cyclobutyl)-carbamic acid tert-butyl ester

Participants

Reaction Steps

Following the procedure used to prepare (1-{-4-[4-oxo-2-phenyl-7-(2H-pyrazol-3-yl)-4H-chromen-3-yl]-phenyl}-cyclobutyl)-carbamic acid tert-butyl ester, {1-[4-(8-chloro-4-oxo-2-phenyl-4H-pyrano[2,3-c]pyridin-3-yl)-phenyl]-cyclobutyl}-carbamic acid tert-butyl ester was reacted with 1-methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrazole to give the title compound (28.7 mg, 97%). LCMS (Method H): RT=4.04 min, [M+H]+=549.

Provenance & Evidence