Provide mechanisms for all steps of the following sequences of reactions. Until this last week, you had never learned a way to synthesize any aromatic molecules (even though we didn't explicitly discuss it in lecture). The following reaction, called the Debus-Radziszewski imidazole synthesis, is a useful and common way to make substituted imidazoles. Provide a complete mechanism for all steps. Imidazoles can be further functionalized to produce a metronidazole analog. (Metronidazole is an antibiotic on the World Health Organization's List of Essential Medicines.) Provide mechanisms for all steps.