| —— | (3R,3'S,3a'R,6'S,8a'R)-3a',4',8',8a'-tetrahydro-1'H,6'H-spiro[indoline-3,7'-[3,6]methanooxepino[4,3-b]pyrrole]-2,2'(3'H)-dione | 247171-24-0 | C16H16N2O3 | 284.315 | 
                                                                                                                                            
                                        | —— | (1S,2R,4R,7S,8R)-5-benzylspiro[10-oxa-5-azatricyclo[5.3.1.04,8]undecane-2,3'-1H-indole]-2',6-dione | 247171-22-8 | C23H22N2O3 | 374.439 | 
                                                                                                                                            
                                        | —— | ditert-butyl (1S,2R,4R,7S,8R)-2',6-dioxospiro[10-oxa-5-azatricyclo[5.3.1.04,8]undecane-2,3'-indole]-1',5-dicarboxylate | 247171-25-1 | C26H32N2O7 | 484.549 | 
                                                                                                                                            
                                        | —— | (3R,3'S,3a'R,6'S,8a'R)-1'-benzyl-1-methyl-3a',4',8',8a'-tetrahydro-1'H,6'H-spiro[indoline-3,7'-[3,6]methanooxepino[4,3-b]pyrrole]-2,2'(3'H)-dione | 247171-21-7 | C24H24N2O3 | 388.466 | 
                                                                                                                                            
                                        | —— | (1R,3S,6S,9R)-8-benzyl-9-(hydroxymethyl)-1'-methyl-8-azaspiro[bicyclo[4.2.1]nonane-3,3'-indolin]-4-ene-2',7-dione | 247171-19-3 | C24H24N2O3 | 388.466 | 
                                                                                                                                            
                                        | —— | (1S,4S,6R)-7-benzyl-1'-methyl-9-methylidenespiro[7-azabicyclo[4.2.1]non-2-ene-4,3'-indole]-2',8-dione | 247171-18-2 | C24H22N2O2 | 370.451 | 
                                                                                                                                            
                                        | —— | (1S,6R,9S)-7-benzyl-9-hydroxy-8-oxo-7-azabicyclo[4.2.1]non-3-en-4-carboxylic acid (2-bromophenyl)amide | 247171-14-8 | C22H21BrN2O3 | 441.324 | 
                                                                                                                                            
                                        | —— | (1S,6R)-7-benzyl-9-methylene-8-oxo-7-azabicyclo[4.2.1]non-3-en-4-carboxylic acid methyl-(2-bromophenyl)amide | 247171-17-1 | C24H23BrN2O2 | 451.363 |