Dicyclohexylcarbodiimide → HCID 178451977, Verbindung

HRID 2110045Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2110045
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([CH2:14][NH:15][C:16]([NH:18][C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][C:20]=2[CH2:25][C:26](=[O:28])[NH2:27])=S)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].C1(N=C=NC2CCCCC2)CCCCC1>O1CCCC1>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([CH2:14][NH:15][C:16]2[NH:18][C:19]3[CH:24]=[CH:23][CH:22]=[CH:21][C:20]=3[CH2:25][C:26](=[O:28])[N:27]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Komponenten

4

Versuchsvorschrift

After dissolving 4-{[({[2-(carbamoylmethyl)phenyl]amino}thioxomethyl)amino]methyl}piperidine carboxylic acid tert-butyl ester (410 mg, 1.01 mmol) in tetrahydrofuran (15 mL), N,N′-dicyclohexylcarbodiimide (208 mg, 1.01 mmol) was added and the mixture was stirred at room temperature for 6 hours. The filtrate obtained by filtering the insoluble portion was concentrated under reduced pressure, and the concentrate was suspended in a solution of n-hexane:ethyl acetate=1:2 (3 mL). The insoluble portion was refiltered, and the residue obtained by concentrating the filtrate under reduced pressure was purified by silica gel column chromatography (n-hexane/ethyl acetate=2/3→1/2) to obtain the title compound. Yield: 193 mg (51%).

Aufarbeitung

  1. additionwas added
  2. customThe filtrate obtained
  3. filtrationby filtering the insoluble portion
  4. concentrationwas concentrated under reduced pressure
  5. customthe residue obtained
  6. concentrationby concentrating the filtrate under reduced pressure
  7. customwas purified by silica gel column chromatography (n-hexane/ethyl acetate=2/3→1/2)

Quellen und Nachweise

ORD-Eintrag
ord-556b656159634713b233fc941b49f201
Quelldatensatz
uspto-grants-2009_04
Patentnummer
US07517875B2

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