6'-hydroxy-4,4-dimethyl-4,5-dihydro-3H-[1,3']bipyridinyl-2,6-dione 、 (4-bromophenyl)(methyl)carbamic chloride 在
三乙烯二胺 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 4.0h,
以20%的产率得到(4-bromo-phenyl)-methyl-carbamic acid 4,4-dimethyl-2,6-dioxo-3,4,5,6-tetrahydro-2H-[1,3']bipyridinyl-6'-yl ester