The first step in the total synthesis of synthetic cholesterol involves production of the intermediate structure shown.Which combination of diene and dieneophile will result in its preparation? 
Definitions:
Diagnosed
The process of identifying a disease or condition from its signs and symptoms through examination, testing, and analysis.
Prosopagnosia
A brain disorder that results in a person's inability to identify faces, often referred to as face blindness.
License Plates
Metal or plastic plates attached to motor vehicles for official identification purposes, displaying a unique sequence of letters and numbers.
Broca's Area
An area of the frontal lobe in the left hemisphere of the brain, associated with the production of language.
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