Showing structure for (2r,10s,12s)-13-hydroxy-10-(2-methylbut-3-en-2-yl)-21-oxo-1,3,14-triazapentacyclo[10.9.0.0²,¹⁰.0⁴,⁹.0¹⁵,²⁰]henicosa-4,6,8,13,15,17,19-heptaene-3-carbaldehyde