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Structural Versatility of Homo-peptides from Cα,α-dialkylated Glycines

✍ Scribed by Toniolo, Claudio

Publisher
Wiley (John Wiley & Sons)
Year
1986
Tongue
English
Weight
492 KB
Volume
18
Category
Article
ISSN
0007-1641

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The crystal-state molecular structures of five linear A0,c homo-oligopeptides to the tetramer were determined by x-ray diffraction. The oligomem are H-(Aw),-OMe, Fmoc-(Ac+),-OMe . MeOH, Ac-(Ac&,-OMe, pBrBz-(Aq&OMe. H20, and t-Boc-(Ac+),-OMe . 2Hz0. The results indicate the propensity of the tri-and

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## Abstract The preferred conformation of the C^α,α^‐diphenylglycine residue was determined in simple derivatives and dipeptides. The dipeptides were synthesized by the 5(4__H__)‐oxazolone (from the N‐__para__‐bromobenzoylated amino acid) method. This activated intermediate and a reaction by‐produc

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The molecular structures of four protected isovaline-(Iva-)containing peptides to the pentamer level have been determined by x-ray diffraction. The peptides are t-Boc-Ala-( S ) -1va-Ala-OMe ( t-Boc : tert-butyloxycarbonyl; OMe : methoxy) and its ( R ) -1va diastereomer, and t-Boc-[ Ala-( R ) -Iva],-