摘要:
6-Amino-2,3-dimorpholinoquinoxaline (3) was allowed to react with bromoacetic acid in the presence of DCC to give 6-(bromoacetyl)amino-2,3-dimorpholinoquinoxaline (4). Five kinds of saturated fatty acids (C-10, C-12, C-14, C-16, and C-18) were subjected to the derivatization with compound (4) within 50 min to afford the corresponding fluorescent products (5a-e). All the peaks of the derivatized products clearly separated within 15 min. The detection limit of decanoic acid (C-10) was estimated to be 10 fmol/10 mu L injection volume (S/N=4).