反应详情

In a manner similar to that described previously (Example 1), 2-amino-5-bromopyridine-3-carboxaldehyde was sequentially reacted with 7-(4-fluorophenyl)-7-oxoheptanoic acid and TFAA-tBuOH. The resulting ester 6B was converted to 6C, coupled with (R)-1-(4-chlorophenyl)ethanamine, and deprotected with TFA to provide the title compound, 6-[[[1(R)-(4-chlorophenyl)ethyl]amino]carbonyl]-2-(4-fluorophenyl)-1,8-naphthyridine-3-pentanoic acid, 6. LCMS (M+H)=506.