The synthesis and conformational analysis of a pair of diastereoisomeric cyclic peptides with cis and transamide bonds, respectively
作者:Sabrina Cumberbatch、Michael North、Guiseppe Zagotto
DOI:10.1039/c39930000641
日期:——
N-Protected, conformationally constrained, eight-membered ring containing cyclic dipeptides derived from methyl cyclo-[(R)-cysteinyl-(R)-penicillamine] contain a cis amide bond, whilst the corresponding peptides derved from cyclo-[(R)-cysteinyl-(S)-penicillamine] contain a trans amide bond.
Ñ -protected,构象受限,含有来自甲基环衍生的环二肽八元环- [([R)-cysteinyl-([R )青霉胺]含有顺式酰胺键,而从环derved相应肽- [([R )-半胱氨酰基-(S)-青霉胺]含有反式酰胺键。