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Volumn 48, Issue 34, 2007, Pages 5973-5975

Microwave-assisted, zinc-mediated peptide coupling of N-benzyl-α,α-disubstituted amino acids

Author keywords

[No Author keywords available]

Indexed keywords

AMINO ACID DERIVATIVE; IRON; ISOBUTYRIC ACID; MAGNESIUM; METAL DERIVATIVE; N BENZYL ALPHA,ALPHA AMINO ACID DERIVATIVE; N BENZYLAMINOISOBUTYRIC ACID; UNCLASSIFIED DRUG; ZINC DERIVATIVE;

EID: 34547095268     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2007.06.109     Document Type: Article
Times cited : (14)

References (18)
  • 11
    • 34547106434 scopus 로고    scopus 로고
    • note
    • The Aib derivative, 1, was synthesized by first reacting Aib with thionyl chloride in ethanol to give the ethyl ester of Aib as the hydrochloride salt. This was then N-alkylated with benzyl bromide to give 1.
  • 14
    • 34547114598 scopus 로고    scopus 로고
    • note
    • In a typical procedure, 1 (0.20 mmol), Fmoc-amino acid chloride (0.20 mmol) and zinc dust (1.0 mmol) in dry dichloromethane (0.5 mL) were stirred at 90 °C for 2 h at 60-70 psi in a CEM Discover® microwave reactor. The reaction was cooled to room temperature, quenched with dry methanol (0.5 mL), filtered and concentrated onto silica. Purification by flash chromatography afforded pure products.
  • 15
    • 34547112949 scopus 로고    scopus 로고
    • note
    • 16
  • 18
    • 34547120583 scopus 로고    scopus 로고
    • note
    • ® microwave reactor. The product was isolated as described previously.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.