Syonyms Name: FK 463; 5-((1S,2S)-2-((2R,6S,9S,11R,12R,14aS,15S,16S,20S,23S,25aS)-20-((1R)-3-Amino-1-hydroxy-3-oxopropyl)-2,11,12,15-tetrahydroxy-6-((1R)-1-hydroxyethyl)-16-methyl-5,8,14,19,22,25-hexaoxo-9-((4-(5-(4-(pentyloxy)phenyl)isoxazol-3-yl)benzoyl)amino)tetracos