名称:
                                Synthesis of the pentacyclic core of lihouidine
                             
                            
                                摘要:
                                The pentacyclic base of the sponge-derived alkaloid lihouidine has been assembled from two quinoline fragments. The key step is a nitration-promoted cyclization to form the C-C bond between the two quinoline units. (C) 2008 Elsevier Ltd. All rights reserved.
                             
                                                            
                                    DOI:
                                    10.1016/j.tetlet.2008.01.118