Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Amino acid and peptide esters protected by the PChd group can be deprotected cathodically under mild conditions. ... -Bu), 1.18 (s, 9H, -Bu), 2.4–3.3 (m, 4H, aliphatic H,NH), 3.67 (s, 3H, OMe), 5.85 (d, = 2.9 Hz, 1H, quinolide H), 6.47 (d, = 2.9 Hz, 1H, quinolide H), 7.1 – 7.4 (m, ...