| —— | 
                                        3,3-ethanediyldioxy-13,17-seco-pregna-5,13(18)-dien-20-one | 
                                        106065-50-3 | 
                                        C23H34O3 | 
                                        358.521 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        3,3-ethanediyldioxy-13,17-seco-androsta-5,13(18)-diene-17-carbonitrile | 
                                        114840-44-7 | 
                                        C22H31NO2 | 
                                        341.494 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        3,3-ethanediyldioxy-13,17-seco-18-nor-pregn-5-ene-13,20-dione | 
                                        101674-58-2 | 
                                        C22H32O4 | 
                                        360.494 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        3,3-ethanediyldioxy-18-nor-androst-5-ene-17α-carbonitrile | 
                                        124135-25-7 | 
                                        C21H29NO2 | 
                                        327.467 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        3,3-ethanediyldioxy-18-nor-13α-androst-5-ene-17β-carbonitrile | 
                                        124222-66-8 | 
                                        C21H29NO2 | 
                                        327.467 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        3,3-ethanediyldioxy-18-nor-pregna-5,13(17)-dien-20-one | 
                                        417728-34-8 | 
                                        C22H30O3 | 
                                        342.478 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        3,3-ethanediyldioxy-18-nor-androsta-5,13(17)-diene-17-carbonitrile | 
                                        95289-55-7 | 
                                        C21H27NO2 | 
                                        325.451 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        3,3-ethanediyldioxy-13-hydroxy-18-nor-13ξ,17ξH-pregn-5-en-20-one | 
                                        115075-08-6 | 
                                        C22H32O4 | 
                                        360.494 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        3,3-ethanediyldioxy-17-(toluene-4-sulfonyloxy)-13,17-seco-androsta-5,13(18)-diene | 
                                        122763-84-2 | 
                                        C28H38O5S | 
                                        486.673 |