| —— | 
                                        tert-butyl α-(2-hydroxy-4-methoxy-5-oxobicyclo<4.1.0>hept-3-en-1-yl)-α-(β-(3,4,5-trimethoxyphenyl)ethyl)acetate | 
                                        79118-08-4 | 
                                        C25H34O8 | 
                                        462.54 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        2-((1S,6R)-5,5-Dimethoxy-4-oxo-bicyclo[4.1.0]hept-2-en-2-yl)-4-(3,4,5-trimethoxy-phenyl)-butyric acid tert-butyl ester | 
                                        79118-06-2 | 
                                        C26H36O8 | 
                                        476.567 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        rel-(1R,2'S,7S)-3',4'-dihydro-3,6',7',8'-tetramethoxyspiro-4-on-7-ol-2'-carboxylic acid lactone | 
                                        79118-04-0 | 
                                        C21H24O7 | 
                                        388.417 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        methyl rel-(1S,2R,2'R,6R)-3',4'-dihydro-4,6',7',8'-tetramethoxyspirohept-3-ene-2,1'-(2'H)-naphthalen>-5-one-2'-carboxylate | 
                                        73276-16-1 | 
                                        C22H26O7 | 
                                        402.444 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        rac-(2R,2'R)-4,6',7',8'-tetramethoxy-5-oxo-3',4'-dihydro-2'H-spiro[bicyclo[4.1.0]heptane-2,1'-naphthalen]-3-ene-2'-carboxylic acid | 
                                        79118-03-9 | 
                                        C21H24O7 | 
                                        388.417 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        methyl 1,2,3,9-tetramethoxy-10-oxo-6,7,11,12-tetrahydro-5H-benzo[a]heptalene-7-carboxylate | 
                                        73276-18-3 | 
                                        C22H26O7 | 
                                        402.444 |