| —— | 
                                        2-Benzothiazol-2-ylmethyl-4-carbamoylmethyl-1,3-dioxo-1,2,3,4-tetrahydro-isoquinoline-4-carboxylic acid methyl ester | 
                                        1027178-25-1 | 
                                        C21H17N3O5S | 
                                        423.449 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        2-Benzothiazol-2-ylmethyl-4-carboxymethyl-1,3-dioxo-1,2,3,4-tetrahydro-isoquinoline-4-carboxylic acid methyl ester | 
                                        137552-94-4 | 
                                        C21H16N2O6S | 
                                        424.434 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        2-Benzothiazol-2-ylmethyl-4-tert-butoxycarbonylmethyl-1,3-dioxo-1,2,3,4-tetrahydro-isoquinoline-4-carboxylic acid methyl ester | 
                                        1025943-11-6 | 
                                        C25H24N2O6S | 
                                        480.541 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        2-(cyanomethyl)-1,2,3,4-tetrahydro-4-(methoxycarbonyl)-1,3-dioxo-4-isoquinolineacetic acid 1,1-dimethylethyl ester | 
                                        137552-91-1 | 
                                        C19H20N2O6 | 
                                        372.378 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        2-(cyanomethyl)-1,2,3,4-tetrahydro-1,3-dioxo-4-isoquinoline carboxylic acid methyl ester | 
                                        137552-89-7 | 
                                        C13H10N2O4 | 
                                        258.233 |