2-methylsulfanyl-5-quinolin-6-ylmethylene-thiazol-4-one 、
左旋苯甘氨酸 、
N,N-二异丙基乙胺 以to give (R)-{4-oxo-5-[1-quinolin-6-yl-meth-(Z)-ylidene]-4,5-dihydro-thiazol-2-ylamino}-phenyl-acetic acid的产率得到(R)-{4-oxo-5-[1-quinolin-6-yl-meth-(Z)-ylidene]-4,5-dihydro-thiazol-2-ylamino}-phenyl-acetic acid