5‐Hydroxypyrroloindoline Affords Tryptathionine and 2,2′‐bis‐Indole Peptide Staples: Application to Melanotan‐II. - Todorovic, Mihajlo; Blanc, Antoine; Wang, Zhou; Lozada, Jerome; Froelich, Juliette; Zeisler, Jutta; Zhang, Chengcheng; Merkens, Helen; Benard, Francois; Perrin, David M. (Chemistry - A European Journal, 2024)