| —— | 
                                        (2R,5S,2'R)-5-(2-acetoxy-3-butenyl)-5-(3-butenyl)-2,5-dihydro-3,6-dimethoxy-2-isopropylpyrazine | 
                                        210431-30-4 | 
                                        C19H30N2O4 | 
                                        350.458 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (2R,5S,2'R)-5-(3-butenyl)-5-(2-hydroxy-3-butenyl)-2,5-dihydro-3,6-dimethoxy-2-isopropylpyrazine | 
                                        210431-24-6 | 
                                        C17H28N2O3 | 
                                        308.421 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (2R,5S)-5-(3-butenyl)-2,5-dihydro-3,6-dimethoxy-5-(2-hydroxyethyl)-2-isopropylpyrazine | 
                                        210431-28-0 | 
                                        C15H26N2O3 | 
                                        282.383 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (2R,5S)-5-(3-butenyl)-2,5-dihydro-3,6-dimethoxy-2-isopropyl-5-(2-oxoethyl)pyrazine | 
                                        210431-29-1 | 
                                        C15H24N2O3 | 
                                        280.367 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (2R,5S)-5-(But-3-enyl)-2,5-dihydro-3,6-dimethoxy-2-isopropylpyrazine | 
                                        188177-79-9 | 
                                        C13H22N2O2 | 
                                        238.33 |