this reaction is an example of conjugate addition of a nucleophile to an α,β-unsaturated carbonyl. Draw the two resonance structures of the enolate anion intermediate for this reaction. • Draw an R1 group in place of CoA. The R group tool is located in the charges and lone pairs drop- down menu . Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner . Separate resonance structures using the symbol from the drop-down menu.