Salicylic Acid → Tert-butyl 2-(2-(2-(2-hydroxybenzamido)ethyl)disulfanyl)ethylcarbamate

HRID 1844649Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1844649
[NH2:1][CH2:2][CH2:3][S:4][S:5][CH2:6][CH2:7][NH:8][C:9](=[O:15])[O:10][C:11]([CH3:14])([CH3:13])[CH3:12].[C:16](O)(=[O:24])[C:17]1[C:18](=[CH:20][CH:21]=[CH:22][CH:23]=1)[OH:19].CCN=C=NCCCN(C)C>C(Cl)Cl>[OH:19][C:18]1[CH:20]=[CH:21][CH:22]=[CH:23][C:17]=1[C:16]([NH:1][CH2:2][CH2:3][S:4][S:5][CH2:6][CH2:7][NH:8][C:9](=[O:15])[O:10][C:11]([CH3:12])([CH3:14])[CH3:13])=[O:24]

Komponenten

5

Edukt 3

HCID 338Salicylic AcidHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 22245556tert-butyl N-(2-((2-aminoethyl)disulfanyl)ethyl)carbamate

Produkt 1

HCID 86643520Tert-butyl 2-(2-(2-(2-hydroxybenzamido)ethyl)disulfanyl)ethylcarbamateAusbeute 54,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel2×

Versuchsvorschrift

tert-Butyl 2-(2-(2-aminoethyl)disulfanyl)ethylcarbamate (500 mg, 1.98 mmol) was taken up in CH2Cl2 (20 mL) along with salicylic acid (273 mg, 1.98 mmol) and EDCI (693 mmol, 2.2 mmol). The resulting reaction mixture was stirred at room temperature for 18 h. It was then diluted with CH2Cl2, washed with saturated aqueous NaHCO3, brine, dried over Na2SO4 and concentrated under reduced pressure. Purification by chromatography (40% EtOAc, 60% pentane) afforded tert-butyl 2-(2-(2-(2-hydroxybenzamido)ethyl)disulfanyl)ethylcarbamate (400 mg, 54%). Mass calculated for C16H24N2O4S2: 372.12. found: [M+H]+=373.

Aufarbeitung

  1. customThe resulting reaction mixture
  2. washwashed with saturated aqueous NaHCO3, brine
  3. dry with materialdried over Na2SO4
  4. concentrationconcentrated under reduced pressure
  5. customPurification by chromatography (40% EtOAc, 60% pentane)

Quellen und Nachweise

ORD-Eintrag
ord-1858cd5cba134c958f5d096c004b28c3
Quelldatensatz
uspto-grants-2015_02
Patentnummer
US08946451B2

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