Synthesis and Reduction Kinetics of Five Ibuprofen–Nitroxides for Ascorbic Acid and Methyl Radicals
作者:Kota Sasaki、Tomohiro Ito、Hirotada G. Fujii、Shingo Sato
DOI:10.1248/cpb.c16-00347
日期:——
The hybrid compounds 1-5 comprised of five nitroxides with ibuprofen were synthesized and their reduction rate for ascorbicacid (AsA) and methyl radicals were measured in comparison with 3-hydroxy-tetramethylpyrrolidine-1-oxyl (PROXYL) 6. The rate constants in reduction reaction with 200-fold excess of AsA were determined in following order: 1 (0.42+/-0.06), 3 (0.17+/-0.06), 2 (0.10+/-0.05), and 6