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4-Methylmorpholine → Boc-Val-Pro-OBzl

HRID 47281
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 47281
[NH:1]1[CH2:15][CH2:14][CH2:13][C@H:2]1[C:3]([O:5][CH2:6][C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1)=[O:4].[NH:16]([C:24]([O:26][C:27]([CH3:30])([CH3:29])[CH3:28])=[O:25])[C@H:17]([C:21](O)=[O:22])[CH:18]([CH3:20])[CH3:19].C1C=CC2N(O)N=NC=2C=1.CN1CCOCC1.C1CCC(N=C=NC2CCCCC2)CC1>C(Cl)(Cl)Cl>[NH:16]([C:24]([O:26][C:27]([CH3:29])([CH3:28])[CH3:30])=[O:25])[C@H:17]([C:21]([N:1]1[CH2:15][CH2:14][CH2:13][C@H:2]1[C:3]([O:5][CH2:6][C:7]1[CH:8]=[CH:9][CH:10]=[CH:11][CH:12]=1)=[O:4])=[O:22])[CH:18]([CH3:19])[CH3:20]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 5

HCID 79724-MethylmorpholineHCID 10868DicyclohexylcarbodiimideHCID 757711-HydroxybenzotriazoleHCID 83693Boc-L-ValineHCID 736155Benzyl L-prolinate

Produkt 1

HCID 14304307Boc-Val-Pro-OBzl

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6212ChloroformLösungsmittel

Versuchsvorschrift

Boc-Val-Pro-OBzl was prepared by dissolving H-Pro-OBzl (20 g, 83 mmol) in 50 mL of chloroform and adding Boc-Val-OH (18.0 g, 83 mmol), HOBt (23.0g, 165 mmol), NMM ( 9.0 mL, 83 mmol) and DCC (17.0 g, 83 mmol). The reaction mixture was stirred overnight at room temperature. The mixture was filtered and solvent was evaporated. Ethyl acetate was added and insoluble material was removed by filtration. The filtrate was washed with 0.2N HCl, 5% NaHCO3, and saturated aqueous NaCl. It was dried over Na2SO4, filtered and evaporate to give a white solid (30 g, 75 mmol, 90%). ESI/MS calculated for C22H32N2O5 +H: 405.2. Found 405.6.

Aufarbeitung

  1. filtrationThe mixture was filtered
  2. customsolvent was evaporated
  3. additionEthyl acetate was added
  4. custominsoluble material was removed by filtration
  5. washThe filtrate was washed with 0.2N HCl, 5% NaHCO3, and saturated aqueous NaCl
  6. dry with materialIt was dried over Na2SO4
  7. filtrationfiltered
  8. customevaporate

Quellen und Nachweise

ORD-Eintrag
ord-875dcea2b1ff48fba32f631ed9d15f10
Quelldatensatz
uspto-grants-2004_03
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US06699855B2

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