Formula: C20H18FNO4, A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 189028-93-1, Name is (S)-1-(4-Fluorophenyl)-5-(2-oxo-4-phenyloxazolidin-3-yl)pentane-1,5-dione, molecular formula is C20H18FNO4. In a Patent，once mentioned of 189028-93-1
The process of the present invention relates to a method for the synthesis of a 1,4-diphenylazetidinone of formula (VIII) by using novel oxime intermediates.
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Reference：
Oxazolidine – Wikipedia,
Oxazolidine | C3H2806NO – PubChem