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  • 4-[(R)-3-((S)-9-Benzyloxycarbonylmethyl-8-oxo-6,7,8,9-tetrahydro-5-oxa-9-aza-benzocyclohepten-7-ylamino)-3-ethoxycarbonyl-propyl]-piperidine-1-carboxylic acid benzyl ester

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