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1-Pentanol → N-[(R)-1-[3-(1-tert-butoxycarbonyl-4-piperidyl)-(E)-acryloyl]-3-piperidylcarbonyl]-3(S)-ethynyl-beta-alanine n-pentyl ester

HRID 1934395
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1934395
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11](/[CH:14]=[CH:15]/[C:16]([N:18]2[CH2:23][CH2:22][CH2:21][C@@H:20]([C:24]([NH:26][C@H:27]([C:32]#[CH:33])[CH2:28][C:29]([OH:31])=[O:30])=[O:25])[CH2:19]2)=[O:17])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH2:34](O)[CH2:35][CH2:36][CH2:37][CH3:38].Cl.C(N=C=NCCCN(C)C)C>ClCCl>[CH2:34]([O:30][C:29](=[O:31])[CH2:28][C@@H:27]([C:32]#[CH:33])[NH:26][C:24]([C@@H:20]1[CH2:21][CH2:22][CH2:23][N:18]([C:16](=[O:17])/[CH:15]=[CH:14]/[CH:11]2[CH2:10][CH2:9][N:8]([C:6]([O:5][C:1]([CH3:3])([CH3:2])[CH3:4])=[O:7])[CH2:13][CH2:12]2)[CH2:19]1)=[O:25])[CH2:35][CH2:36][CH2:37][CH3:38]
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Komponenten

5

Edukt 3

HCID 62761-PentanolHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 86758027N-[(R)-1-[3-(1-tert-butoxycarbonyl-4-piperidyl)-(E)-acryloyl]-3-piperidylcarbonyl]-3(S)-ethynyl-beta-alanine

Produkt 1

HCID 86758033N-[(R)-1-[3-(1-tert-butoxycarbonyl-4-piperidyl)-(E)-acryloyl]-3-piperidylcarbonyl]-3(S)-ethynyl-beta-alanine n-pentyl esterAusbeute 94 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a mixture of N-[(R)-1-[3-(1-tert-butoxycarbonyl-4-piperidyl)-(E)-acryloyl]-3-piperidylcarbonyl]-3(S)-ethynyl-β-alanine (0.6 g), n-pentylalcohol (0.16 ml) and N,N-dimethylaminopyridine (16 mg) in dichloromethane (6 ml) was added 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide hydrochloride (0.27 g) at 0° C. After stirring at room temperature for overnight, the solution was evaporated in vacuo. The residue was poured into water and extracted with ethyl acetate. The extract was washed with saturated aqueous sodium hydrogencarbonate, water and brine, dried over MgSO4, and evaporated in vacuo, subsequently. The residue was purified by column chromatography on silica gel eluting with AcOEt:Hexane=(1:1) to give N-[(R)-1-[3-(1-tert-butoxycarbonyl-4-piperidyl)-(E)-acryloyl]-3-piperidylcarbonyl]-3(S)-ethynyl-β-alanine n-pentyl ester as a colorless oil (0.65 g, 94.0%).

Aufarbeitung

  1. customthe solution was evaporated in vacuo
  2. additionThe residue was poured into water
  3. extractionextracted with ethyl acetate
  4. washThe extract was washed with saturated aqueous sodium hydrogencarbonate, water and brine
  5. dry with materialdried over MgSO4
  6. customevaporated in vacuo
  7. customThe residue was purified by column chromatography on silica gel eluting with AcOEt

Quellen und Nachweise

ORD-Eintrag
ord-519d8538e9b641798729c15d232759f1
Quelldatensatz
uspto-grants-2002_05
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US06384028B1

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