5 (6) -Tamra Se

(2,5-dioxopyrrolidin-1-yl) 3',6'-bis (dimethylamino) -1-oxospiro[2-benzofuran-3,9'-xanthene]-5-carboxylate; (2,5-dioxopyrrolidin-1-yl) 3',6'-bis (dimethylamino) -3-oxospiro[2-benzofuran-1,9'-xanthene]-5-carboxylate

CN(C)C1=CC2=C(C=C1)C3(C4=C(C=C(C=C4)C(=O)ON5C(=O)CCC5=O)C(=O)O3)C6=C(O2)C=C(C=C6)N(C)C.CN(C)C1=CC2=C(C=C1)C3(C4=C(O2)C=C(C=C4)N(C)C)C5=C(C=CC(=C5)C(=O)ON6C(=O)CCC6=O)C(=O)O3