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Chloroiodomethane → 3,3-bis(N-CBz-L-valyloxymethyl)-propionic acid chloromethyl ester

HRID 1170570
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1170570
[C:1]([NH:11][C@H:12]([C:16]([O:18][CH2:19][CH:20]([CH2:25][O:26][C:27](=[O:43])[C@H:28]([CH:40]([CH3:42])[CH3:41])[NH:29][C:30]([O:32][CH2:33][C:34]1[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=1)=[O:31])[CH2:21][C:22]([OH:24])=[O:23])=[O:17])[CH:13]([CH3:15])[CH3:14])([O:3][CH2:4][C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1)=[O:2].[OH-].C([N+](CCCC)(CCCC)CCCC)CCC.[Cl:62][CH2:63]I>O1CCOCC1>[Cl:62][CH2:63][O:23][C:22](=[O:24])[CH2:21][CH:20]([CH2:25][O:26][C:27](=[O:43])[C@H:28]([CH:40]([CH3:42])[CH3:41])[NH:29][C:30]([O:32][CH2:33][C:34]1[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=1)=[O:31])[CH2:19][O:18][C:16](=[O:17])[C@H:12]([CH:13]([CH3:15])[CH3:14])[NH:11][C:1]([O:3][CH2:4][C:5]1[CH:6]=[CH:7][CH:8]=[CH:9][CH:10]=1)=[O:2]
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Komponenten

5

Edukt 3

HCID 11644ChloroiodomethaneHCID 2723671Tetrabutylammonium HydroxideHCID 233875233,3-bis(N-CBz-L-valyloxymethyl)-propionic acid

Produkt 1

HCID 537927163,3-bis(N-CBz-L-valyloxymethyl)-propionic acid chloromethyl ester

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 312751,4-DioxaneLösungsmittel

Versuchsvorschrift

3,3-bis (N-CBz-L-valyloxymethyl)-propionic acid (3 g, 5 mmole) was dissolved in dioxane (20 ml). To the solution was added tetrabutylammonium hydroxide aqueous solution (40%, 3.11 ml, 4.8 mmole). The solution was dried in vacuo, and it was coevaporated with toluene several times. The residue was dissolved in methylene chloride (15 ml) and then chloroiodomethane (7.3 ml, 100 mmole) was added to the solution. The reaction solution was refluxed for 18 hr and then evaporated and the product was isolated with silica gel column chromatography. 900 mg.

Aufarbeitung

  1. customThe solution was dried in vacuo, and it
  2. dissolutionThe residue was dissolved in methylene chloride (15 ml)
  3. temperatureThe reaction solution was refluxed for 18 hr
  4. customevaporated
  5. customthe product was isolated with silica gel column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-0eeeb3b71bd047fcbcfdaef4db042980
Quelldatensatz
uspto-grants-2010_11
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07825238B2

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