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N-(tert-butoxycarbonyl)glycine → ethyl 2-(2-((tert-butoxycarbonyl)amino)-N-(4-(trifluoromethoxy)benzyl)acetamido)-2-(2,6-dimethoxyphenyl)acetate

HRID 594410
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 594410
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][CH:6]=[C:5]([O:9][CH3:10])[C:4]=1[CH:11]([NH:17][CH2:18][C:19]1[CH:24]=[CH:23][C:22]([O:25][C:26]([F:29])([F:28])[F:27])=[CH:21][CH:20]=1)[C:12]([O:14][CH2:15][CH3:16])=[O:13].[C:30]([O:34][C:35]([NH:37][CH2:38][C:39](O)=[O:40])=[O:36])([CH3:33])([CH3:32])[CH3:31].CCN(C(C)C)C(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>CN(C=O)C.O.CCOCC>[C:30]([O:34][C:35]([NH:37][CH2:38][C:39]([N:17]([CH:11]([C:4]1[C:3]([O:2][CH3:1])=[CH:8][CH:7]=[CH:6][C:5]=1[O:9][CH3:10])[C:12]([O:14][CH2:15][CH3:16])=[O:13])[CH2:18][C:19]1[CH:20]=[CH:21][C:22]([O:25][C:26]([F:27])([F:28])[F:29])=[CH:23][CH:24]=1)=[O:40])=[O:36])([CH3:33])([CH3:32])[CH3:31]
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Komponenten

8

Edukt 4

HCID 78288N-(tert-butoxycarbonyl)glycineHCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 69080982Ethyl 2-(2,6-dimethoxyphenyl)-2-((4-(trifluoromethoxy)benzyl)amino)acetate

Produkt 1

HCID 86695634
ethyl 2-(2-((tert-butoxycarbonyl)amino)-N-(4-(trifluoromethoxy)benzyl)acetamido)-2-(2,6-dimethoxyphenyl)acetate

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 962WaterLösungsmittelHCID 3283Diethyl EtherLösungsmittelHCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

A mixture of ethyl 2-(2,6-dimethoxyphenyl)-2-((4-(trifluoromethoxy)benzyl)-amino)acetate (1.121 g; 2.71 mmol), 2-(tert-butoxycarbonylamino)acetic acid (1.187 g; 6.77 mmol), DIPEA (1.752 g; 13.55 mmol), and HATU (2.577 g; 6.77 mmol) in anh. DMF (20 ml) was stirred at rt, under nitrogen, for 18 h. Et2O (20 ml) and water (20 ml) were then added to the reaction mixture, and the separated aq. layer was further extracted with Et2O (3×50 ml). The mixed organic layers were washed with brine (50 ml), dried over anh. MgSO4, filtered, and concentrated to dryness under reduced pressure. Purification by FC (DCM/MeOH=50/1) afforded ethyl 2-(2-((tert-butoxycarbonyl)amino)-N-(4-(trifluoromethoxy)benzyl)acetamido)-2-(2,6-dimethoxyphenyl)acetate as a yellow oil. LC-MS (conditions D): tR=1.12 min.; [M+H]+: 571.78 g/mol.

Aufarbeitung

  1. extractionthe separated aq. layer was further extracted with Et2O (3×50 ml)
  2. washThe mixed organic layers were washed with brine (50 ml)
  3. dry with materialdried over anh. MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated to dryness under reduced pressure
  6. customPurification by FC (DCM/MeOH=50/1)

Quellen und Nachweise

ORD-Eintrag
ord-0de950b82bd545ed8d0576a81d61ccdc
Quelldatensatz
uspto-grants-2016_01
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09242970B2

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