Fmoc-Gly-OH → ({2-[2-(N-(tert-butoxycarbonyl)-N-methylamino)ethyl]phenylcarbamoyl}methyl)carbamic acid ((9-fluorenyl)methyl) ester

HRID 366151

Reaktionsgleichung

Reaktionsgleichung von HRID 366151
[CH:1]1[C:13]2[CH:12]([CH2:14][O:15][C:16]([NH:18][CH2:19][C:20](O)=[O:21])=[O:17])[C:11]3[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=3)[C:5]=2[CH:4]=[CH:3][CH:2]=1.Cl.CN(C)CCCN=C=NCC.[C:35]([O:39][C:40](=[O:52])[N:41]([CH2:43][CH2:44][C:45]1[CH:50]=[CH:49][CH:48]=[CH:47][C:46]=1[NH2:51])[CH3:42])([CH3:38])([CH3:37])[CH3:36]>ClCCl>[CH:10]1[C:11]2[CH:12]([CH2:14][O:15][C:16](=[O:17])[NH:18][CH2:19][C:20](=[O:21])[NH:51][C:46]3[CH:47]=[CH:48][CH:49]=[CH:50][C:45]=3[CH2:44][CH2:43][N:41]([C:40]([O:39][C:35]([CH3:38])([CH3:36])[CH3:37])=[O:52])[CH3:42])[C:13]3[C:5](=[CH:4][CH:3]=[CH:2][CH:1]=3)[C:6]=2[CH:7]=[CH:8][CH:9]=1

Komponenten

5

Edukt 3

HCID 93124Fmoc-Gly-OHHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 10800697N-(2-(2-aminophenyl)ethyl)-N-methylcarbamic acid tert-butyl ester

Produkt 1

HCID 20677516({2-[2-(N-(tert-butoxycarbonyl)-N-methylamino)ethyl]phenylcarbamoyl}methyl)carbamic acid ((9-fluorenyl)methyl) esterAusbeute 95,6 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel3×

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

2-(((9-Fluorenyl)methoxycarbonyl)amino)acetic acid (2.49 g, 2.79 mmol) was suspended in dichloromethane (40 ml). The suspension was cooled to 0° C. N-(3-Dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride (802 mg, 4.19 mmol) was added. The reaction mixture was stirred for 30 min at 0° C. A solution of N-(2-(2-aminophenyl)ethyl)-N-methylcarbamic acid tert-butyl ester (698 mg, 2.79 mmol) in dichloromethane (15 ml) was added. The reaction mixture was stirred for 16 h, while it was warming up to room temperature. It was diluted with dichloromethane (100 ml) and washed with brine (100 ml). The aqueous solution was extracted with dichloromethane (2×30 ml). The combined organic layers were dried over magnesium sulfate. The solvent was removed in vacuo. The crude product was purified by flash chromatography on silica (80 g), using ethyl acetate/heptane (1:1) as eluent, to give 1.412 g of ({2-[2-(N-(tert-butoxycarbonyl)-N-methylamino)ethyl]phenylcarbamoyl}methyl)carbamic acid ((9-fluorenyl)methyl) ester.

Aufarbeitung

  1. stirringThe reaction mixture was stirred for 16 h, while it
  2. temperaturewas warming up to room temperature
  3. washwashed with brine (100 ml)
  4. extractionThe aqueous solution was extracted with dichloromethane (2×30 ml)
  5. dry with materialThe combined organic layers were dried over magnesium sulfate
  6. customThe solvent was removed in vacuo
  7. customThe crude product was purified by flash chromatography on silica (80 g)

Quellen und Nachweise

ORD-Eintrag
ord-12be51cfe44d4db1b5c0573c91873f78
Quelldatensatz
uspto-grants-2000_10
Patentnummer
US06127354

Verknüpfte Notizen

Wird geladen…