Dicyclohexylcarbodiimide → HCID 69248230, Verbindung

HRID 475032Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 475032
[C:1]([O:5][C:6]([N:8]1[CH2:12][CH2:11][CH2:10][C@H:9]1[C:13]([OH:15])=[O:14])=[O:7])([CH3:4])([CH3:3])[CH3:2].[OH:16][CH2:17][CH2:18][N:19]1[C:24](=[O:25])[CH2:23][CH2:22][CH:21]([N:26]2[C:34](=[O:35])[C:33]3[C:28](=[CH:29][CH:30]=[CH:31][CH:32]=3)[C:27]2=[O:36])[C:20]1=[O:37].C1CCC(N=C=NC2CCCCC2)CC1>C(Cl)Cl.CN(C1C=CN=CC=1)C>[C:1]([O:5][C:6]([N:8]1[CH2:12][CH2:11][CH2:10][C@H:9]1[C:13]([OH:15])=[O:14])=[O:7])([CH3:4])([CH3:2])[CH3:3].[OH:16][CH2:17][CH2:18][N:19]1[C:24](=[O:25])[CH2:23][CH2:22][CH:21]([N:26]2[C:27](=[O:36])[C:28]3[C:33](=[CH:32][CH:31]=[CH:30][CH:29]=3)[C:34]2=[O:35])[C:20]1=[O:37]

Komponenten

6

Edukt 3

HCID 10868DicyclohexylcarbodiimideHCID 850831,2-Pyrrolidinedicarboxylic acid, 1-(1,1-dimethylethyl) ester, (2S)-HCID 119652712-(1-(2-Hydroxyethyl)-2,6-dioxopiperidin-3-yl)isoindoline-1,3-dione

Produkt 1

HCID 69248230HCID 69248230, VerbindungAusbeute 76,9 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 142844-(Dimethylamino)pyridineKatalysatorHCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

(S)-1-(tert-butoxycarbonyl)pyrrolidine-2-carboxylic acid (374 mg) and 2-(1-(2-hydroxyethyl)-2,6-dioxopiperidin-3-yl)isoindoline-1,3-dione (500 mg) were dissolved in DCM (30 mL). The mixture was stirred on a magnetic stirrer at room temperature. DCC (350 mg) and DMAP (25 mg) were added in one portion and the mixture was allowed to react overnight. The mixture was then filtered to remove dicyclohexylurea. The filter cake washed several times with DCM, and the filtrates were combined. The filtrates were dried over anhydrous magnesium sulfate and filtered. The solvent was removed by rotary evaporation in vacuo. White solid (658 mg) was obtained after the crude product was purified by silica gel column chromatography (eluted with chloroform:acetone 9:2).

Aufarbeitung

  1. customto react overnight
  2. filtrationThe mixture was then filtered
  3. customto remove dicyclohexylurea
  4. washThe filter cake washed several times with DCM
  5. dry with materialThe filtrates were dried over anhydrous magnesium sulfate
  6. filtrationfiltered
  7. customThe solvent was removed by rotary evaporation in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-4b5e4715fd004129a05842aad9174a24
Quelldatensatz
uspto-grants-2014_01
Patentnummer
US08637545B2

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