| —— | 2,3,5,6,7,8-Hexahydro-2(R)-hydroxy-6-methyl-8-oxo-1H-pyrrolo<1,2-a>indole-9-carboxylic acid | 77198-70-0 | C13H15NO4 | 249.266 | 
                                                                                                                                            
                                        | —— | 2,3,5,6,7,8-Hexahydro-2(R)-<(methylsulfonyl)oxy>-6-methyl-8-oxo-1H-pyrrolo<1,2-a>indole-9-carboxylic acid | 77198-71-1 | C14H17NO6S | 327.358 | 
                                                                                                                                            
                                        | —— | (S)-2-Hydroxy-6-methyl-8-oxo-2,3,5,6,7,8-hexahydro-1H-pyrrolo[1,2-a]indole-7,9-dicarboxylic acid | 93454-29-6 | C14H15NO6 | 293.276 | 
                                                                                                                                            
                                        | —— | 5,6,7,8-Tetrahydro-6-methyl-8-oxo-3H-pyrrolo<1,2-a>indole-9-carboxylic acid | 93454-30-9 | C13H13NO3 | 231.251 | 
                                                                                                                                            
                                        | —— | 6-Acetoxy-3-(3-methoxycarbonyl-2-methyl-propyl)-6,7-dihydro-5H-pyrrolizine-1,2-dicarboxylic acid dimethyl ester | 65481-20-1 | C19H25NO8 | 395.409 | 
                                                                                                                                            
                                        | —— | 6-Hydroxy-3-(3-methoxycarbonyl-2-methyl-propyl)-6,7-dihydro-5H-pyrrolizine-1,2-dicarboxylic acid dimethyl ester | 65481-19-8 | C17H23NO7 | 353.372 |