(2E,4R,5R)-5-Bromo-4-hydroxy-2-hexenoic acid
(2E,4R,5R)-5-Bromo-4-hydroxy-2-hexenoic acid ??
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(2E,4R,5R)-5-Bromo-4-hydroxy-2-hexenoic acid C??? ??, ??, ??
(2E,4R,5R)-5-Bromo-4-hydroxy-2-hexenoic acid ?? ?? ? ???
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(2E,4R,5R)-5-Bromo-4-hydroxy-2-hexenoic acid ?? ??
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