The use of HMQC-TOCSY experiments for elucidating the structures of bicyclic lactams: Uncovering a surprise rearrangement in the synthesis of a key prophe building block
作者:Kevin D. Moeller、Cathleen E. Hanau、Andrè d'Avignon
DOI:10.1016/s0040-4039(00)75973-9
日期:1994.1
were used to unequivocally assign the ring skeletons of several bicyclic lactams. This work demonstrated the power of these techniques for establishing the complete carbon connectivity of peptide buildingblocks with closely overlapping protons. In addition, it has led to the discovery of a surprise rearrangement reaction and allowed for the correction of a previously misassigned Pro-Phe building block
Conformationally constrained thyroliberin analogs: a novel electrochemical route to a key rigid Pro-Phe building block
作者:Kevin D. Moeller、Scott L. Rothfus
DOI:10.1016/s0040-4039(00)79559-1
日期:1992.5
An anodic amide oxidation has been employed in the synthesis of a rigid Pro-Phe building block. The key electrochemical step allowed for the functionalization of a proline derivative and led to an annulation procedure for conveniently constructing the bicyclic ring system used to lock the dipeptide building block into a specific conformation.