Product (4S, 5R) -3 - tert-butoxy -2 - (4 - methoxyphenyl) -4 - phenyl -5-- oxazolidine carboxylic acid CAS No.: 196404-55-4 Structure formula:   Molecular formula: C22H25NO6 Specification: ≥98% Use: Docetaxel side chain Packing: According to the customers' requirements

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