Showing structure for n-(2-methoxy-2-{12-oxo-8,14-diazatetracyclo[7.7.1.0²,⁷.0¹³,¹⁷]heptadeca-1(17),2(7),3,5,8,10,13,15-octaen-10-yl}ethyl)-3-methylbut-2-enimidic acid