Stereoselective self-sorting in the self-assembly of a Phe–Phe extended guanidiniocarbonyl pyrrole carboxylate zwitterion: formation of two diastereomeric dimers with significantly different stabilities
作者:Fabian Rodler、Wilhelm Sicking、Carsten Schmuck
DOI:10.1039/c1cc12520f
日期:——
The 'dipeptide extended' guanidiniocarbonyl pyrrole carboxylate zwitterion GCP-Phe-Phe 1 forms stable dimers in DMSO. However, dimerization is highly stereoselective. Only homochiral dimers are formed and the (L,L).(L,L) dimer (K(dim) > 10(5) M(-1)) is significantly more stable by a factor of 10(3) than the diastereomeric (D,L).(D,L) dimer (K(dim) = 120 M(-1)).
“二肽扩展的”胍基二羰基吡咯羧酸盐两性离子GCP-Phe-Phe 1在DMSO中形成稳定的二聚体。但是,二聚化是高度立体选择性的。仅形成同手性二聚体并且(L,L)。(L,L)二聚体(K(dim)> 10(5)M(-1))比非对映异构体更稳定10(3)倍(D,L)。(D,L)二聚体(K(dim)= 120 M(-1))。