Showing structure for [2-hydroxy-13-methyl-4-(3-methylbutyl)-11,14,17-trioxo-5-oxa-15-thia-13-azatetracyclo[8.7.0.0³,⁸.0¹²,¹⁶]heptadeca-1(10),2,8,12(16)-tetraen-6-yl]acetic acid