Synthesis and Bioactivity of 4-Halogen-5-[(4-methyl-2-oxo-2 H-1-ben- zopyran-7-yl)oxy]-2-substituted-3(2 H)-pyridazinone Deriva-tives
BAI Kun, YAO Cai-Ping, CHEN Qing, SHEN Chen, PEI Wen
Chin. J. Org. Chem. . 2010, (08): 1255 -1258 .