Reexamination of the solution conformation of a series of N-Boc O-benz
yl protected proline oligomers (dimer-hexamer) by 500 MHz NMR reveals
that these oligomers adopt the poly-L-proline type II conformation in
solution and do not require a critical chain length for conformational
stability as has been previously reported. Copyright (C) 1996 Elsevie
r Science Ltd