| —— | 
                                        (1S,4S,8S,11S)-9-tert-butyl-6-hydroxy-13-methoxy-3,5,12-trioxatetracyclo[6.6.0.01,11.04,8]tetradec-9-en-2-one | 
                                        111436-75-0 | 
                                        C16H22O6 | 
                                        310.347 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (3aS,5aS,8aS,10aS)-9-tert-Butyl-2,7-dimethoxy-2,3,7,8-tetrahydro-10aH-furo[2,3-b]furo[3',2':2,3]cyclopenta[1,2-c]furan-4-one | 
                                        111436-74-9 | 
                                        C17H24O6 | 
                                        324.374 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (3aS,4S,6aS)-5-tert-Butyl-2-hydroxy-4-(2-oxo-ethyl)-2,3,4,6a-tetrahydro-cyclopenta[b]furan-3a,4-dicarboxylic acid dimethyl ester | 
                                        111436-69-2 | 
                                        C17H24O7 | 
                                        340.373 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (3aS,5aR,8aS,10aS)-9-tert-Butyl-2,7-dimethoxy-2,3,7,8-tetrahydro-10aH-furo[2,3-b]furo[3',2':2,3]cyclopenta[1,2-c]furan-4-ol | 
                                        111436-73-8 | 
                                        C17H26O6 | 
                                        326.39 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (1R,3aR,7aR)-3-tert-Butyl-1-hydroxy-4,7-dihydro-1H-indene-3a,7a-dicarboxylic acid dimethyl ester | 
                                        111436-68-1 | 
                                        C17H24O5 | 
                                        308.375 |