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Methanesulfonic Acid → (5S)-2-(5-{3-[(1S)-2-Methoxy-1-methylethoxy]-5-[4-(methylsulfonyl)phenoxy]phenyl}-1H-pyrrol-2-yl)-5-methyl-4,5-dihydro-1,3-oxazole

HRID 909477
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 909477
O[C@H:2]([CH3:35])[CH2:3][NH:4][C:5]([C:7]1[NH:8][C:9]([C:12]2[CH:17]=[C:16]([O:18][C:19]3[CH:24]=[CH:23][C:22]([S:25]([CH3:28])(=[O:27])=[O:26])=[CH:21][CH:20]=3)[CH:15]=[C:14]([O:29][C@@H:30]([CH3:34])[CH2:31][O:32][CH3:33])[CH:13]=2)=[CH:10][CH:11]=1)=[O:6].CS(O)(=O)=O.C(N(CC)CC)C.C(=O)([O-])O.[Na+]>O1CCCC1>[CH3:33][O:32][CH2:31][C@H:30]([CH3:34])[O:29][C:14]1[CH:13]=[C:12]([C:9]2[NH:8][C:7]([C:5]3[O:6][C@@H:2]([CH3:35])[CH2:3][N:4]=3)=[CH:11][CH:10]=2)[CH:17]=[C:16]([O:18][C:19]2[CH:24]=[CH:23][C:22]([S:25]([CH3:28])(=[O:26])=[O:27])=[CH:21][CH:20]=2)[CH:15]=1
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Komponenten

6

Edukt 4

HCID 6395Methanesulfonic AcidHCID 8471TriethylamineHCID 516892Sodium BicarbonateHCID 66680968N-[(2R)-2-Hydroxypropyl]-5-{3-[(1S)-2-methoxy-1-methylethoxy]-5-[4-(methylsulfonyl)phenoxy]phenyl}-1H-pyrrole-2-carboxamide

Produkt 1

HCID 58065517(5S)-2-(5-{3-[(1S)-2-Methoxy-1-methylethoxy]-5-[4-(methylsulfonyl)phenoxy]phenyl}-1H-pyrrol-2-yl)-5-methyl-4,5-dihydro-1,3-oxazole
Ausbeute 74 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

N-[(2R)-2-Hydroxypropyl]-5-{3-[(1S)-2-methoxy-1-methylethoxy]-5-[4-(methylsulfonyl)phenoxy]phenyl}-1H-pyrrole-2-carboxamide (191 mg, 0.380 mmol) synthesized in Example (31a) was dissolved in tetrahydrofuran (10 mL), and anhydrous methanesulfonic acid (100 mg, 0.574 mmol) and triethylamine (0.16 mL, 1.15 mmol) were added, followed by stirring at room temperature for 18 hours under nitrogen atmosphere. A saturated aqueous sodium hydrogencarbonate solution (10 mL) was added, and the solution was separated with ethyl acetate (20 mL). The organic layer was washed with saturated brine, and subsequently dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure, and the resulting residue was purified using silica gel column chromatography (elution solvent: ethyl acetate/hexane=30%-70%) to afford the desired product (136 mg, yield 74%) as a white solid.

Aufarbeitung

  1. customthe solution was separated with ethyl acetate (20 mL)
  2. washThe organic layer was washed with saturated brine
  3. dry with materialsubsequently dried over anhydrous magnesium sulfate
  4. distillationThe solvent was distilled off under reduced pressure
  5. customthe resulting residue was purified
  6. washsilica gel column chromatography (elution solvent: ethyl acetate/hexane=30%-70%)

Quellen und Nachweise

ORD-Eintrag
ord-6193974f969d4a21972e9fa558768d8d
Quelldatensatz
uspto-grants-2011_09
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08017610B2

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