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Water → Methanesulfonic acid 4'-[5-(acetylamino-methyl)-2-oxo-oxazolidin-3-yl]-2'-fluoro-biphenyl-4-ylmethyl ester

HRID 273257
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 273257
[F:1][C:2]1[CH:7]=[C:6]([N:8]2[CH2:12][CH:11]([CH2:13][NH:14][C:15](=[O:17])[CH3:16])[O:10][C:9]2=[O:18])[CH:5]=[CH:4][C:3]=1[C:19]1[CH:24]=[CH:23][C:22]([CH2:25][OH:26])=[CH:21][CH:20]=1.C(N(CC)CC)C.[CH3:34][S:35](Cl)(=[O:37])=[O:36].O>C(Cl)Cl>[C:15]([NH:14][CH2:13][CH:11]1[O:10][C:9](=[O:18])[N:8]([C:6]2[CH:5]=[CH:4][C:3]([C:19]3[CH:24]=[CH:23][C:22]([CH2:25][O:26][S:35]([CH3:34])(=[O:37])=[O:36])=[CH:21][CH:20]=3)=[C:2]([F:1])[CH:7]=2)[CH2:12]1)(=[O:17])[CH3:16]
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 4

HCID 962WaterHCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 21907449N-[3-(2-Fluoro-4'-hydroxymethyl-biphenyl-4-yl)-2-oxo-oxazolidin-5-ylmethyl]-acetamide

Produkt 1

HCID 86596639Methanesulfonic acid 4'-[5-(acetylamino-methyl)-2-oxo-oxazolidin-3-yl]-2'-fluoro-biphenyl-4-ylmethyl esterAusbeute 78 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Reaktionsbedingungen

Temperatur
2.5 °C

Versuchsvorschrift

A suspension of 51 (12.49 g, 34.90 mmol) in methylene chloride (CH2Cl2, 150 mL) was treated with triethylamine (Et3N, 7.07 g, 9.7 mL, 70 mmol, 2.0 equiv) at 25° C., and the resulting mixture was cooled to 0-5° C. before being treated dropwise with methanesulfonyl chloride (4.80 g, 3.24 mL, 41.9 mmol, 1.2 equiv) at 0-5° C. The resulting reaction mixture was subsequently stirred at 0-5° C. for 2 h. When TLC and HPLC showed the reaction was complete, the reaction mixture was treated with H2O (100 mL) at 0-5° C. The mixture was then concentrated in vacuo to remove most of the CH2Cl2, and the resulting slurry was treated with H2O (150 mL). The mixture was stirred at room temperature for 10 min before being cooled to 0-5° C. for 30 min. 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 methanesulfonic acid 4′-[5-(acetylamino-methyl)-2-oxo-oxazolidin-3-yl]-2′-fluoro-biphenyl-4-ylmethyl ester 52 (11.84 g, 78% yield) was obtained as off-white solids, which by TLC and HPLC was found to be essentially pure and was directly used in the subsequent reaction without further purification. LCMS (ESI) m/e 437 (M+H)+.

Aufarbeitung

  1. customThe resulting reaction mixture
  2. concentrationThe mixture was then concentrated in vacuo
  3. customto remove most of the CH2Cl2
  4. additionthe resulting slurry was treated with H2O (150 mL)
  5. stirringThe mixture was stirred at room temperature for 10 min
  6. temperaturebefore being cooled to 0-5° C. for 30 min
  7. customThe solid precipitates
  8. filtrationwere collected by filtration
  9. washwashed with H2O (2×100 mL) and 20% EtOAc/hexane (2×50 mL)
  10. customdried in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-5a15b2c975ef4df59049757b27d05c0e
Quelldatensatz
uspto-grants-2008_11
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07456206B2

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