| —— | (2S,2'S)-2,2'-diamino-3,3'-(5,5'-dihydroxy-3-oxo-3,4-dihydro-[2,2']bi[benzo[1,4]thiazinylidene]-7,7'-diyl)-bis-propionic acid dimethyl ester | 25179-80-0 | C24H24N4O7S2 | 544.609 | 
                                                                                                                                            
                                        | —— | (2S,2'S)-2,2'-bis-benzoylamino-3,3'-(5,5'-dihydroxy-3-oxo-3,4-dihydro-[2,2']bi[benzo[1,4]thiazinylidene]-7,7'-diyl)-bis-propionic acid | 23416-85-5 | C36H28N4O9S2 | 724.772 | 
                                                                                                                                            
                                        | —— | (2S,2'S)-2,2'-bis-benzoylamino-3,3'-(5,5'-dimethoxy-3-oxo-3,4-dihydro-[2,2']bi[benzo[1,4]thiazinylidene]-7,7'-diyl)-bis-propionic acid dimethyl ester | 23416-86-6 | C40H36N4O9S2 | 780.879 | 
                                                                                                                                            
                                        | —— | 2-amino-3-(5-hydroxy-3-oxo-3,4-dihydro-2H-benzo[1,4]thiazin-7-yl)-propionic acid | 21819-97-6 | C11H12N2O4S | 268.293 |