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[(2S,3S)-3-[(2S,3S)-3-[[(3As,4S,7S,7aR)-4-[(E)-4-methoxy-2-methyl-4-oxobut-2-enyl]-2-oxo-4,6,7,7a-tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyran-7-yl]methyl]oxiran-2-yl]butan-2-yl] imidazole-1-carboxylate


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