1,2-dihydro-3,1-benzoxazin-4-one and 4H-1,2-dihydro-pyrido-[2,3-d]-[1,3]-Oxazin-4-one derivatives as potential prodrugs part I: Synthesis
作者:Gerhard Schwenker、Jianbing Chen
DOI:10.1002/ardp.2503241009
日期:——
1‐Mono‐ and previously unknown 1,2‐disubstituted1,2‐dihydro‐3,1‐benzoxazin‐4‐ones 7 and 9, potential prodrugs of flufenamic acid (6) and mefenamic acid (8), and 4H‐1,2‐dihydro‐pyrido‐[2,3‐d]‐[1,3]‐oxazin‐4‐ones 11, potential prodrugs of niflumic acid (10), were prepared; the structures of all newcompounds wereconfirmed by spectroscopic methods.