You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 2-[15-[(2E,4Z)-5-amino-3-cyanopenta-2,4-dienyl]-12-oxapentacyclo[11.8.0.02,11.03,8.016,21]henicosa-1(13),2(11),3,5,7,9,14,16,18,20-decaen-9-yl]pyridine-4-carbonitrile into molecular formula.
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C32H20N4O
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