AR9 (2R,4S)-N-butyl-4-[(2S,5S,7R)-2,7-dimethyl-3,15-dioxo-1,4-diazacyclopentadecan-5-yl]-4-hydroxy-2-methylbutanamide CCCCNC(=O)[C@H](C)C[C@@H]([C@@H]1C[C@@H](CCCCCCCC(=O)N[C@H](C(=O)N1)C)C)O