Showing structure for 11-phenyl-15-(3-phenylprop-2-enoyl)-4,12,19-trioxahexacyclo[13.6.1.0²,¹⁴.0³,⁷.0⁸,¹³.0¹⁶,²⁰]docos-8(13)-ene-5,9,18,22-tetrone