In the above article [Wootten, D, Savage EE, Willard FS, Bueno AB, Sloop KW, Christopoulos A, and Sexton PM (2013) Mol Pharmacol 83:822–834], the structure drawing of TT15 in Fig. 1 is wrong. The structure should be as represented below. The name of the compound in the abbreviations on pages 822 and 823 and in Tables 1, 2, and 4 is also incorrect; it should be TT15, (2S)-2-[[(8S)-7-benzoyl-3-[4-[(3,4-dichlorophenyl)methoxy]phenyl]-2-oxo-1,6,8,9-tetrahydropyrido[4,3-g][1,4]benzoxazine-8-carbonyl]amino]-3-[4-(4-cyanophenyl)phenyl]propanoic acid (IUPAC name), as indicated in the supplemental material. Intermediate 5 of the synthesis of TT15 (see supplemental material) corresponds to “intermediate A” in Mjalli, A. M. M. US Patent 7, 727, 983 B2 “Oxadiazoanthracene compounds for the treatment of diabetes,” Granted patent, Editor, TransTech Pharma.
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