在
palladium on activated charcoal ammonium acetate 、
氢气 作用下,
以
乙醇 为溶剂,
以75 mg的产率得到(4R)-4-[[(2S)-2-acetamido-3-carboxypropanoyl]amino]-5-[[(2S,3S)-1-[[(2S)-1-[(2S,4R)-2-[[[(1S)-2,3-dihydro-1H-inden-1-yl]carbamoyl-propylamino]carbamoyl]-4-phenylmethoxypyrrolidin-1-yl]-3-methyl-1-oxobutan-2-yl]amino]-3-methyl-1-oxopentan-2-yl]amino]-5-oxopentanoic acid