Author/Authors :
Sheu، نويسنده , , Ming-Thau and Wu، نويسنده , , Jender and Chen، نويسنده , , Chih-Jui and Chao، نويسنده , , Su-Hui and Wu، نويسنده , , An-Bang، نويسنده ,
Abstract :
A sample of 10 mM tolmetin in methanol was photo-irradiated with a Hanovia 200 W high-pressure quartz Hg lamp for four days. In total, eight photoproducts were observed from the HPLC chromatogram. Three major photoproducts were separated, and their structures were elucidated by spectroscopic methods. The structures of all photoproducts were further determined by LC–ESI-MS. A reaction scheme of tolmetin was proposed.