反应详情

In analogy to the procedure described in example 50k), 4-[3-methoxy-5-(piperidin-4-ylcarbamoyl)-phenoxy]-butyric acid methyl ester [prepared from 4-[3-methoxy-5-(3-methoxycarbonyl-propoxy)-benzoylamino]-piperidine-1-carboxylic acid tert-butyl ester by Boc cleavage in analogy to example 50i)] was reacted with 3,5-diethoxy-4-fluoro-benzaldehyde (example 50 g), sodium cyanoborohydride, N-ethyl-diisopropylamine and acetic acid in ethanol at 50° C. to yield the title compound as colorless solid. MS: 547.3 (MH+).