(R)-(+)-N-苄基-1-苯乙胺 、
正丁基锂 、
环戊烯-1-羧酸甲酯 、
碘甲烷 、 在
silica gel 作用下,
以methyl (1S,2R)-2-{benzyl[(l R)-1-phenylethyl]amino}-1-methylcyclopentanecarboxylate (2.804 g, 7.97 mmol, 78%) was obtained as a brown oil after column chromatography on silica gel eluting with 5% ethyl acetate/hexanes的产率得到methyl (1S,2R)-2-{benzyl[(1R)-1-phenylethyl]amino}-1-methylcyclopentanecarboxylate