In the following reaction. a Wittig reagent is generated in situ by mixing the phosphonium sait with a strong base, in the presence of an aldehyde (note that ester groups are generally not reactive toward Wittig reagents). Predict the product of this reaction. Note that NaHMDS is a strong base with a negative charge on nitrogen, like NaNH2. Modify the given structure of the starting material to draw the major product