{3-ethyl-5-[(3-ethyl-3H-benzothiazol-2-yliden)-ethyliden]-4-oxo-thiazolidin-2-ylidene}-malonic acid diethyl ester 在
盐酸 作用下,
生成 2-[2-(
N-acetyl-anilino)-vinyl]-3-ethyl-5-[(3-ethyl-3
H-benzothiazol-2-yliden)-ethyliden]-4-oxo-4,5-dihydro-thiazolium; iodide