3-(Ethoxycarbonyl)-4-fluorophenylboronic Acid (contains varying amounts of Anhydride) → 5-{3-Chloro-4-[3,3,3-trifluoro-2-hydroxy-1-methyl-2-(4-methyl-3-oxo-3,4-dihydro-2H-benzo[1,4]oxazin-6-yl)-propyl]-phenoxy}-2-fluoro-benzoic acid ethyl ester

Beteiligte Stoffe

Reaktionsschritte

In analogy to Example 5, 6-[(2-chloro-4-hydroxy-phenyl)-1-hydroxy-1-trifluoromethyl-propyl]-4-methyl-4H-benzo[1,4]oxazin-3-one (63 mg) was reacted with 3-ethoxycarbonyl-4-fluorophenylboronic acid, copper-(II)-acetate and pyridine to give the title compound (25 mg) as a white solid. MS (m/e)=582.0 [M+H+].

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