Reference of 189028-93-1, When developing chemical systems it’s of course important to gain a deep understanding of the chemical reaction process. 189028-93-1, Name is (S)-1-(4-Fluorophenyl)-5-(2-oxo-4-phenyloxazolidin-3-yl)pentane-1,5-dione,introducing its new discovery.
The invention discloses a crystal form of a ezetimibe key intermediate and a preparation method. The invention relates to (4S) -3 – [(5S) -5 – (4 – fluorophenyl) -5 – hydroxyvaleryl] -4 – phenyl -2 – oxazolidinone crystal form and a preparation method. In particular, the present invention provides a crystalline form, of a compound of formula (I), having an X-ray powder diffraction pattern at 2 theta, characterized by a characteristic diffraction peak: 6.195 ±0.2 , 7.640 ±0.2 , 8.289 ±0.2 , 12.847 ±0.2 , respectively. 18.394 ±0.2 , 19.871 ±0.2 , 21.548 ±0.2 , 25.062 ±0.2 . (by machine translation)
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Reference：
Oxazolidine – Wikipedia,
Oxazolidine | C3H2809NO – PubChem