Water → N-[3-(4'-azidomethyl-2-fluoro-biphenyl-4-yl)-2-oxo-oxazolidin-5-ylmethyl]-acetamide

A solution of 52 (9.27 g, 21.26 mmol) in anhydrous N,N-dimethylformamide (DMF, 50 mL) was treated with sodium azide (NaN3, 5.53 g, 85.04 mmol, 4.0 equiv) at 25° C., and the resulting reaction mixture was warmed to 70–80° C. for 4 h. When TLC and HPLC showed the reaction was complete, the reaction mixture was cooled to room temperature before being treated with H2O (150 mL). The resulting mixture was stirred at room temperature for 10 min before being cooled to 0–5° C. for 1 h. The solid precipitates were collected by filtration, washed with H2O (2×100 mL) and 20% EtOAc/hexane (2×50 mL), and dried in vacuo. The crude desired N-[3-(4′-azidomethyl-2-fluoro-biphenyl-4-yl)-2-oxo-oxazolidin-5-ylmethyl]-acetamide 53 (7.16 g, 88% yield) was obtained as off-white solids. The material was found to be essentially pure by TLC and HPLC and was directly used in the subsequent reaction without further purification. LCMS (ESI) m/e 384 (M+H)+.

1. customthe resulting reaction mixture
2. temperaturewas warmed to 70–80° C. for 4 h
3. temperaturebefore being cooled to 0–5° C. for 1 h
4. customThe solid precipitates
5. filtrationwere collected by filtration
6. washwashed with H2O (2×100 mL) and 20% EtOAc/hexane (2×50 mL)
7. customdried in vacuo

ORDレコード

ord-266aea5e3db34b81911670c0b0295bfb

出典データセット

uspto-grants-2006_12

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US07148219B2