| —— | 
                                        methyl 3α-hydroxy-2β-benzyloxymethyl-5ξ-carbomethoxymethylcyclopentane-1ξ-acetate tetrahydropyranyl ether | 
                                        73995-84-3 | 
                                        C24H34O7 | 
                                        434.53 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        3α-hydroxy-7-oxo-2β-benzyloxymethylbicyclo<3.3.0>octane tetrahydropyranyl ether (α-isomer) | 
                                        73996-31-3 | 
                                        C21H28O4 | 
                                        344.451 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        3α-hydroxy-7-oxo-2β-benzyloxymethylbicyclo<3.3.0>octane tetrahydropyranyl ether (β-isomer) | 
                                        74028-42-5 | 
                                        C21H28O4 | 
                                        344.451 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        methyl 3α-hydroxy-2β-(benzyloxymethyl)-5-(carbomethoxymethylene)cyclopentane-1α-acetate 3-tetrahydropyran-2-yl ether | 
                                        74080-58-3 | 
                                        C24H32O7 | 
                                        432.514 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (3aS,4S,5R,6aR)-4-(((2-methoxypropan-2-yl)oxy)methyl)-5-((tetrahydro-2H-pyran-2-yl)oxy)hexahydropentalen-2(1H)-one | 
                                        74028-43-6 | 
                                        C18H30O5 | 
                                        326.433 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        3α-hydroxy-7-oxo-2β-hydroxymethylbicyclo<3.3.0>octane 3-tetrahydropyranyl ether | 
                                        73996-33-5 | 
                                        C14H22O4 | 
                                        254.326 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        3α-hydroxy-7-oxo-2β-benzyloxymethylbicyclo<3.3.0>octane (β-isomer) | 
                                        82293-07-0 | 
                                        C16H20O3 | 
                                        260.333 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        5-((3aS,4S,5R,6aS)-4-(((2-methoxypropan-2-yl)oxy)methyl)-5-((tetrahydro-2H-pyran-2-yl)oxy)hexahydropentalen-2(1H)-ylidene)pentanoic acid | 
                                        74042-66-3 | 
                                        C23H38O6 | 
                                        410.551 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        3α-hydroxy-2β-hydroxymethyl-7-(4-carbomethoxybutylidene)bicyclo[3.3.0]octane 3-tetrahydropyranyl ether | 
                                        73996-05-1 | 
                                        C20H32O5 | 
                                        352.471 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        methyl 2-((4S,5R)-4-((benzyloxy)methyl)-2-oxo-5-((tetrahydro-2H-pyran-2-yl)oxy)hexahydro-6aH-cyclopenta[b]furan-6a-yl)-2-(trimethylsilyl)acetate | 
                                        82259-28-7 | 
                                        C26H38O7Si | 
                                        490.669 |