Ethyl 6-[(4-fluorophenyl)methyl]-10-hydroxy-12-oxo-4-oxa-1,8-diazatricyclo[7.3.1.05,13]trideca-5(13),6,8,10-tetraene-11-carboxylate 、
C.I.酸性橙108 以
N,N-二甲基甲酰胺 为溶剂,
反应 0.08h,
以57%的产率得到3-(4-Fluorobenzyl)-10-hydroxy-N-(2-hydroxyethyl)-8-oxo-5,6-dihydro-8H-[1,4]oxazino[2,3,4-de][1,5]naphthyridine-9-carboxamide