| —— | 
                                        (2S,5S)-5-(9H-fluoren-9-ylmethoxycarbonylamino)-piperidine-1,2,5-tricarboxylic acid 1-benzyl ester 2-tert-butyl ester | 
                                        862177-23-9 | 
                                        C34H36N2O8 | 
                                        600.668 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (2S,5S)-5-(9H-fluoren-9-ylmethoxycarbonylamino)-piperidine-1,2,5-tricarboxylic acid 1,5-dibenzyl ester 2-tert-butyl ester | 
                                        862177-26-2 | 
                                        C41H42N2O8 | 
                                        690.793 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (2S,5S)-5-(9H-fluoren-9-ylmethoxycarbonylamino)-piperidine-1,2,5-tricarboxylic acid 1-benzyl ester 5-methyl ester | 
                                        862177-19-3 | 
                                        C31H30N2O8 | 
                                        558.588 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (2S,5S)-5-(9H-fluoren-9-ylmethoxycarbonylamino)-piperidine-1,2,5-tricarboxylic acid 1,5-dibenzyl ester | 
                                        862177-18-2 | 
                                        C37H34N2O8 | 
                                        634.686 |