Synthesis of Two Key Fragments of the Complex Polyhalogenated Marine Meroterpenoid Azamerone
                                
                                    
                                        作者:Simon D. Schnell、Anthony Linden、Karl Gademann                                    
                                    
                                        DOI:10.1021/acs.orglett.9b00090
                                    
                                    
                                        日期:2019.2.15
                                    
                                    A concise route toward two advanced fragments in the context of the total synthesis of the unique natural product azamerone is reported. Key synthetic features include the enantioselective synthesis of an epoxysilane and its Lewis-acid-induced cyclization and the installation of the pyridazine ring via a formylation/condensation sequence. This route provides strategic insights into the chemistry of phthalazinediols, facilitating synthetic approaches toward this class of natural products.