3-[4-fluoro-2-(2-naphthalen-1-yl-ethoxy)-benzenesulfonyl amino]-N-methoxy-N methyl-succinamic acid tert-butyl ester 、
乙酸乙酯 、
四氢吡咯 在
(3S)-3-[[4-acetamido-2-[(2R,3S)-3-(benzimidazol-1-yl)butan-2-yl]oxyphenyl]sulfonylamino]-4-oxobutanoic acid 、
magnesium sulfate 、 crude product 作用下,
反应 5.0h,
以(S)-N-Methoxy-N-methyl-3-[2-(2-naphthalen-1-yl-ethoxy)-4-pyrrolidin-1-yl-benzenesulfonyl amino]-succinamic acid tert-butyl ester was obtained in 81% yield (1.0 g) as a off white foam的产率得到(S)-N-methoxy-N-methyl-3-[2-(2-naphthalen-1-yl-ethoxy)-4-pyrrolidin-1-yl-benzenesulfonylamino]-succinamic acid tert-butyl ester