Hydrochloric Acid → (S)-3-(4-(3-(3-chloro-4-isopropoxyphenyl)-1,2,4-oxadiazol-5-yl)phenoxy)propane-1,2-diol

온도

70 °C

To a solution of (R)-3-(3-chloro-4-isopropoxyphenyl)-5-(4-((2,2-dimethyl-1,3-dioxolan-4-yl)methoxy)phenyl)-1,2,4-oxadiazole (0.339 g, 0.762 mmol) in THF (15.24 ml) was added a solution of 1N HCl (1.524 ml, 1.524 mmol). After 48 h additional 1N HCl (2.286 ml, 2.286 mmol) was added and the reaction mixture was heated to 70° C. for about 2 h. After cooling to ambient temperature a solution of 1N NaOH (3.81 ml, 3.81 mmol) was added and the reaction mixture was concentrated in vacuo. The resulting solid was washed with copious amounts of water and dried in vacuo to provide (S)-3-(4-(3-(3-chloro-4-isopropoxyphenyl)-1,2,4-oxadiazol-5-yl)phenoxy)propane-1,2-diol (0.294 g, 94%) as a colorless solid. LCMS (Table 1, Method c) Rt=2.73 min, m/z 405 (M+H)+.

1. additionwas added
2. concentrationthe reaction mixture was concentrated in vacuo
3. washThe resulting solid was washed with copious amounts of water
4. customdried in vacuo

ORD 기록

ord-d1cab83a427d40c6a899c880e292b9cb

출처 데이터셋

uspto-grants-2010_11

DOI

10.6084/m9.figshare.5104873.v1

특허 번호

US07834039B2