(2,4-dimethoxy-benzyl)-(2-oxo-1,2,3,4-tetrahydro-pyrido[3,2-d]pyrimidin-6-yl)-carbamic acid tert-butyl ester 、 、
碘苯 以to afford 420 mg of (2,4-dimethoxy-benzyl)-(2-oxo-1,3-diphenyl-1,2,3,4-tetrahydro-pyrido[3,2-d]pyrimidin-6-yl)-carbamic acid tert-butyl ester (MS: [M+H]+=567) and 358 mg of (2,4-dimethoxy-benzyl)-(2-oxo-1-phenyl-1,2,3,4-tetrahydro-pyrido[3,2-d]pyrimidin-6-yl)-carbamic acid tert-butyl ester的产率得到(2,4-dimethoxy-benzyl)-(2-oxo-1,3-diphenyl-1,2,3,4-tetrahydro-pyrido[3,2-d]pyrimidin-6-yl)-carbamic acid tert-butyl ester