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(2R,3R,4S,5R,6E)-3,4,5-trihydroxy-2-methoxy-N-[(3S)-5-methyl-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepin-3-yl]-7-(3-thienyl)hept-6-enamide
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(2R,3R,4S,5R,6E)-7-cyclopentyl-3,4,5-trihydroxy-2-methoxy-N-[(3S)-5-methyl-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepin-3-yl]hept-6-enamide
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(2R,3R,4S,5R,6E)-7-cyclopentyl-3,4,5-trihydroxy-2-methoxy-N-[(3S)-4-oxo-6-phenyl-2,3,4,5-tetrahydro-1,5-benzoxazepin-3-yl]hept-6-enamide
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(2R,3R,4S,5R,6E)-7-cyclopentyl-3,4,5-trihydroxy-2-methoxy-N-[(3S)-4-oxo-9-phenyl-2,3,4,5-tetrahydro-1,5-benzoxazepin-3-yl]hept-6-enamide
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(2R,3R,4S,5R,6E)-3,4,5-trihydroxy-2-methoxy-N-[(3R)-5-methyl-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepin-3-yl]undec-6-enamide