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Volumn , Issue 18, 2004, Pages 3820-3827

The "azirine/oxazolone method" under solid-phase conditions

Author keywords

Aminoisobutyric acid (Aib); Azirine; Inverse peptide synthesis; Oxazolone method; Peptides; Solid phase synthesis

Indexed keywords

2 AMINO 2 METHYLPROPIONIC ACID; 2H AZIRIN 3 AMINE; ALANINE; AZIRINE DERIVATIVE; CARBOXYLIC ACID DERIVATIVE; OXAZOLONE; PHENYLALANINE; PHOSGENE; REAGENT; SYNTHETIC PEPTIDE; TOLUENE; TRIFLUOROACETIC ACID; UNCLASSIFIED DRUG;

EID: 4644291269     PISSN: 1434193X     EISSN: None     Source Type: Journal    
DOI: 10.1002/ejoc.200400330     Document Type: Article
Times cited : (29)

References (55)
  • 29
    • 4644221891 scopus 로고    scopus 로고
    • note
    • After PyBOP-mediated coupling of carboxylpolystyrene and H-Ala-OtBu, the tBu ester was hydrolyzed in TFA/DCM. The resin was treated, the tBu ester was hydrolyzed in TFA/DCM. 3-amine (2), the terminal amide was then hydrolyzed with 3 M HCI, and PyBOP-mediated coupling with H-Phe-OtBu finally yielded the resin-bound tripeptide Ala-Aib-Phe-OtBu. After every reaction, the resin was examined by ATR-FT-IR spectroscopy. Acidic hydrolysis (propionic acid/HCl, 130 °C) of the resin-bound tripeptide gave Ala, Aib and Phe, which were detected by ESI-MS.
  • 40
    • 4644225139 scopus 로고    scopus 로고
    • note
    • Some loss of peptide was observed during deprotection of tBu esters with TFA on hydroxymethyl polystyrene resin. When hydroxyethylpolystyrene resin was used no cleavage from the support was achieved with either trifluoromethanesulfonic acid or HBr in acetic acid.
  • 41
    • 4644280560 scopus 로고    scopus 로고
    • Performed by C. A. T. GmbH & Co., Tübingen, Germany
    • Performed by C. A. T. GmbH & Co., Tübingen, Germany.
  • 43
    • 4644291293 scopus 로고    scopus 로고
    • note
    • 2O was added. The solution was stirred at room temp. and then concentrated in vacuo.
  • 44
    • 4644242433 scopus 로고    scopus 로고
    • "Special Issue: Peptaibols/Peptaibiotics": H. Brückner (Ed.), J. Pept. Sci. 2003, 9, 663-837.
    • (2003) J. Pept. Sci. , vol.9 , pp. 663-837
    • Brückner, H.1
  • 48
    • 4644254232 scopus 로고    scopus 로고
    • note
    • +) was detected. Probably the amide group in the side chain of Gln had partially hydrolyzed in 3 M HCl, so that two molecules of Val could add in the subsequent coupling reaction.
  • 54
    • 4644273926 scopus 로고    scopus 로고
    • note
    • 3).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.