1,2-Dichloroethane → Benzyl[(1S)-4-[(tert-butoxycarbonyl)amino]-1-({[(1S)-2-[(tert-butoxycarbonyl)amino]-1-(hydroxymethyl)ethyl]amino}carbonyl)butyl]carbamate

HRID 269681Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 269681
[CH2:1]([O:8][C:9]([NH:11][C@H:12]([C:24]([OH:26])=O)[CH2:13][CH2:14][CH2:15][NH:16][C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:27]([O:31][C:32](=[O:39])[NH:33][CH2:34][C@H:35]([NH2:38])[CH2:36][OH:37])([CH3:30])([CH3:29])[CH3:28].C(Cl)CCl.C1C=CC2N(O)N=NC=2C=1>CN(C)C=O>[CH2:1]([O:8][C:9](=[O:10])[NH:11][C@H:12]([C:24]([NH:38][C@H:35]([CH2:36][OH:37])[CH2:34][NH:33][C:32]([O:31][C:27]([CH3:28])([CH3:29])[CH3:30])=[O:39])=[O:26])[CH2:13][CH2:14][CH2:15][NH:16][C:17]([O:19][C:20]([CH3:21])([CH3:22])[CH3:23])=[O:18])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Komponenten

6

Edukt 4

HCID 111,2-DichloroethaneHCID 757711-HydroxybenzotriazoleHCID 7350734Z-Ndelta-Boc-L-ornithineHCID 10702853(S)-tert-Butyl (2-amino-3-hydroxypropyl)carbamate

Produkt 1

HCID 131727171Benzyl[(1S)-4-[(tert-butoxycarbonyl)amino]-1-({[(1S)-2-[(tert-butoxycarbonyl)amino]-1-(hydroxymethyl)ethyl]amino}carbonyl)butyl]carbamate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

Under argon, 0.18 g (0.49 mmol) of N2-[(benzyloxy)carbonyl]-N5-(tert-butoxycarbonyl)-L-ornithine and 0.122 g (0.64 mmol) of tert-butyl[(2S)-2-amino-3-hydroxypropyl]carbamate (Example 251A) are dissolved in 6 ml of dimethylformamide. Then, at 0° C. (ice bath), 0.123 g (0.64 mmol) of EDC and 0.02 g (0.15 mmol) of HOBt are added. The mixture is slowly warmed to RT and stirred at RT for 12 h. The solution is concentrated in vacuo and the residue is taken up with ethyl acetate. The organic phase is washed successively with saturated sodium bicarbonate and sodium chloride solutions, dried over magnesium sulfate and evaporated in vacuo. The remaining solid is purified by preparative HPLC (Kromasil, mobile phase acetonitrile/0.25% aqueous trifluoroacetic acid 5:95→95:5).

Aufarbeitung

  1. concentrationThe solution is concentrated in vacuo
  2. washThe organic phase is washed successively with saturated sodium bicarbonate and sodium chloride solutions
  3. dry with materialdried over magnesium sulfate
  4. customevaporated in vacuo
  5. customThe remaining solid is purified by preparative HPLC (Kromasil, mobile phase acetonitrile/0.25% aqueous trifluoroacetic acid 5:95→95:5)

Quellen und Nachweise

ORD-Eintrag
ord-1f59c99da0cc4338b9685ed6e7930911
Quelldatensatz
uspto-grants-2008_11
Patentnummer
US07446102B2

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