作者:Matthias C. McIntosh、Steven M. Weinreb                                    
                                    
                                        DOI:10.1021/jo00070a016
                                    
                                    
                                        日期:1993.8
                                    
                                    A convergent synthesis of a protected version of (+)-lycoricidine has been accomplished in 13 steps from L-arabinose.  Preparation of the aminocyclitol moiety 50 employed a novel vinylsilane-terminated N-sulfonyliminium ion cyclization of vinylsilane aldehyde 42. Closure of the B-ring using an intramolecular Heck reaction afforded lycoricidine derivative 58. An unexpected cyclization of vinylsilane aldehyde 42 allowed for the stereodivergent preparation of semiprotected conduritols 43 and 45.