1-Pyrrolidinecarboxylic acid,2-[(1S,2S)-2-[(3-carboxybenzoyl)amino]-3-(3,5-difluorophenyl)-1-[[(1,1-dimethylethyl)dimethylsilyl]oxy]propyl]-4-propoxy-, 1-(1,1-dimethylethyl)ester, (2R,4R)-
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