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 、
盐酸羟胺 、
sodium acetate 在
水 、
乙酸乙酯 、
magnesium sulfate 、 (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 、
(Z)-1-[3,6-dimethyl-2-(2,4,6-trimethylphenoxy)pyridin-4-yl]-N-methoxypropan-1-imine 作用下,
以
乙醇 为溶剂,
反应 16.0h,
以to give 51 mg of a mixture of the title (E) and (Z)-isomers as a white solid的产率得到(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