Potassium Carbonate → Ethyl 5-[(tert-butoxycarbonyl){2-[5-fluoro-2-({4-[2-(4-fluorophenyl)ethyl]benzyl}oxy)phenyl]-ethyl}amino]-5,6,7,8-tetrahydroquinoline-2-carboxylate

Participants

Reaction Steps

10 g (21.81 mmol) of rac-ethyl 5-{(tert-butoxycarbonyl)[2-(5-fluoro-2-hydroxyphenyl)ethyl]-amino}-5,6,7,8-tetrahydroquinoline-2-carboxylate (Example 106A), 5.98 g (23.99 mmol) of 1-(chloromethyl)-4-[2-(4-fluorophenyl)ethyl]benzene and 4.52 g (32.71 mmol) of potassium carbonate in 240 ml of acetonitrile were heated to 110° C. and stirred at this temperature overnight. After cooling, the reaction mixture was filtered, the filter cake was washed repeatedly with acetonitrile and the combined filtrates were concentrated to dryness on a rotary evaporator. The residue obtained was purified chromatographically on silica gel (mobile phase: cyclohexane/ethyl acetate 10:1→4:1). This gave 14.11 g (21.03 mmol, 96% of theory) of the target compound.

Provenance & Evidence