(2-Oxopropyl)amine → HCID 89768391, Verbindung

HRID 1477530

Reaktionsgleichung

Reaktionsgleichung von HRID 1477530
[CH2:1]([O:8][C:9]([N:11]1[CH2:15][C@H:14]([O:16][C:17]([CH3:20])([CH3:19])[CH3:18])[CH2:13][C@H:12]1[C:21](O)=[O:22])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[NH2:24][CH2:25][C:26](=[O:28])[CH3:27].CCN=C=NCCCN(C)C.Cl.C1C=CC2N(O)N=NC=2C=1.C(N(CC)CC)C>ClCCl.O>[CH2:1]([O:8][C:9]([N:11]1[CH2:15][C@H:14]([O:16][C:17]([CH3:18])([CH3:20])[CH3:19])[CH2:13][C@H:12]1[C:21](=[O:22])[NH:24][CH2:25][C:26](=[O:28])[CH3:27])=[O:10])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Komponenten

8

Edukt 5

HCID 215(2-Oxopropyl)amineHCID 8471TriethylamineHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 6950951Z-Hyp(Tbu)-OH

Produkt 1

HCID 89768391HCID 89768391, VerbindungAusbeute 55,4 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a stirred solution of (2S,4R)-4-tert-butoxy-pyrrolidine-1,2-dicarboxylic acid 1-benzyl ester (10.78 g, 33.54 mmol) and 1-amino-propan-2-one (2.45 g, crude, 33.54 mmol) in dichlormethane (56 mL) were added EDC.HCl (6.405 g, 33.54 mmol), HOBt (5.128 g, 33.54 mmol) and triethylamine (12.67 mL, 100.62 mmol). The mixture was stirred at room temp. for 24 h. The reaction mixture was then diluted with water, extracted with dichloromethane and washed with water and brine. The organic layer was dried over anhydrous sodium sulfate, filtered and concentrated. The crude was then purified by column chromatography to give (2S,4R)-4-tert-butoxy-2-(2-oxo-propylcarbamoyl)-pyrrolidine-1-carboxylic acid benzyl ester (7 g, 55.4% yield) as a light brown liquid. MS calcd. for C20H29N2O5 [(M+H)+] 377.0, obsd. 377.4.

Aufarbeitung

  1. extractionextracted with dichloromethane
  2. washwashed with water and brine
  3. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe crude was then purified by column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-f81b82f4fb1d4a5bb84bcff3f1415f2f
Quelldatensatz
uspto-grants-2016_08
Patentnummer
US09403805B2

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