N-[4-({4-[2-(6-Chloro-7-hydroxy-2-oxo-2H-chromen-4-yl)-acetylamino]-phenoxy}-hydroxy-phosphoryloxy)-phenyl]-2-(6-hydroxy-3-oxo-3H-xanthen-9-yl)-terephthalamic acid 在
phosphodiesteraze I from Crotalus adamanteus venom 作用下,
以
水 为溶剂,
生成 6-chloro-7-hydroxy-4-(4-hydroxyphenylcarbamoylmethyl)coumarin 、 6-(4-hydroxyphenylcarbamoyl)fluorescein