2H-Pyran-2-one,6-cyclopentyl-3-[(5,7-dimethyl[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)methyl]-6-[2-(2-ethyl-5-propoxy-4-pyridinyl)ethyl]-5,6-dihydro-4-hydroxy-, (6S)-
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