Dicyclohexylcarbodiimide → HCID 86642295, Verbindung

HRID 446910

Reaktionsgleichung

Reaktionsgleichung von HRID 446910
[SH:1][C:2]1[N:3]([NH2:20])[C:4]([C@H:7]([NH:9][C:10](=[O:19])[O:11][CH2:12][C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)[CH3:8])=[N:5][N:6]=1.[Cl:21][C:22]1[CH:23]=[C:24]([N:28]=[C:29]=S)[CH:25]=[CH:26][CH:27]=1.C1(N=C=NC2CCCCC2)CCCCC1>C(O)C.CCOCC>[Cl:21][C:22]1[CH:23]=[C:24]([NH:28][C:29]2[S:1][C:2]3=[N:6][N:5]=[C:4]([C@H:7]([NH:9][C:10](=[O:19])[O:11][CH2:12][C:13]4[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=4)[CH3:8])[N:3]3[N:20]=2)[CH:25]=[CH:26][CH:27]=1

Komponenten

6

Edukt 3

HCID 10868DicyclohexylcarbodiimideHCID 754493-Chlorophenyl isothiocyanateHCID 178462184HCID 178462184, Verbindung

Produkt 1

HCID 86642295HCID 86642295, VerbindungAusbeute 48,7 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 702EthanolLösungsmittelHCID 3283Diethyl EtherLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

(Step 8-ii) A mixture of (R)-benzyl 1-(5-mercapto-4-amino-4H-1,2,4-triazol-3-yl)ethylcarbamate (1.32 g, 4.5 mmol) in ethanol (15 mL) was heated to 80° C. and 3-chlorophenylisothiocyanate (1.3 g, 7.65 mmol) and dicyclohexylcarbodiimide (1.11 g, 5.4 mmol) were added. After 4 hours, the reaction was cooled, diluted with an equal volume of ether, and filtered. The filter cake was washed with additional ether and the collected solids dried in vacuo to provide 0.94 g of (R)-benzyl 1-(6-(3-chlorophenylamino)-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-3-yl)ethylcarbamate: ESMS MH+=429.

Aufarbeitung

  1. temperaturethe reaction was cooled
  2. filtrationfiltered
  3. washThe filter cake was washed with additional ether
  4. customthe collected solids dried in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-99b478e2c89843c2a1f93812d9885667
Quelldatensatz
uspto-grants-2013_07
Patentnummer
US08481538B2

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