Improved Triplex-Forming Isoorotamide PNA Nucleobases for A-U Recognition of RNA Duplexes. - Talbott JM; Tessier BR; Harding EE; Walby GD; Hess KJ; Baskevics V; Katkevics M; Rozners E; MacKay JA (Chemistry (Weinheim an der Bergstrasse, Germany), 2023)