Showing structure for (6s,10s,12s)-12-methyl-18-oxo-2,7,11,13-tetraazapentacyclo[12.3.1.0⁴,¹⁷.0⁷,¹⁶.0¹⁰,¹⁵]octadeca-1(17),3,13,15-tetraene-6-carboxylic acid