(R)-4-((S)-4-hydroxy-6-aza-spiro[2.5]oct-6-yl)-2-[7-oxo-4-(3-trifluoromethyl-phenyl)-[1,4]diazepan-1-yl]-butyric acid methyl ester 、
锂硼氢 以gave the title compound in 60% yield as a white foam的产率得到4-[(R)-3-((S)-4-hydroxy-6-aza-spiro[2.5]oct-6-yl)-1-hydroxymethyl-propyl]-1-(3-trifluoromethyl-phenyl)-[1,4]diazepan-5-one