1-[7-methyl-1-(2,4,6-trimethyl-phenyl)-1,4-dihydro-2H-pyrimido[4,5-d][1,3]oxazin-5-yl]-propan-1-one 、
1-[2-Methyl-8-(2,4,6-trimethyl-phenyl)-quinolin-4-yl]-propan-1-one (E)-O-methyl-oxime 在
盐酸羟胺 、
sodium acetate 作用下,
以
乙醇 、
正己烷 、
乙酸乙酯 为溶剂,
生成 (Z)-1-[7-Methyl-1-(2,4,6-trimethyl-phenyl)-1,4-dihydro-2H-pyrimido[4,5-d][1,3]oxazin-5-yl]-propan-1-one oxime