Design, synthesis, and structural analysis of D,L-mixed polypyrrolinones. 2. Macrocyclic hexapyrrolinones.
The design, synthesis, and structural analysis of two macrocyclic D,L-alternating hexapyrrolinones have been achieved. These cyclic peptide mimics adopt a flat, hexagonal conformation, stabilized by intramolecular hydrogen bonding between adjacent pyrrolinone rings. Extensive NMR studies and X-ray analysis reveal, respectively, that the macrocyclic hexapyrrolinones aggregate in solution and in the solid state form staggered stacked nanotube-like assemblies.
Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. smithab@sas.upenn.edu
Amos B
AB
Smith
Hui
H
Xiong
Adam K
AK
Charnley
Meinrad
M
Brenner
Eugen F
EF
Mesaros
Craig S
CS
Kenesky
Luigi
L
Di Costanzo
David W
DW
Christianson
Ralph
R
Hirschmann
D018360:Crystallography, X-Ray; D047028:Macrocyclic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D008968:Molecular Conformation; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry; D011760:Pyrrolidinones / Q000138:chemical synthesis* / Q000737:chemistry; D013237:Stereoisomerism
D047028:Macrocyclic Compounds; D011108:Polymers; D011760:Pyrrolidinones