3-(3-Amino-4-methoxy-phenyl)-3-(3,4-dimethoxy-phenyl)-acrylonitrile 、
(4-methoxy-3-nitro-phenyl)-(3-ethoxy-4-methoxy-phenyl)-methanol 、 在
(4-methoxy-3-nitro-phenyl)-(3-ethoxy-4-methoxy-phenyl)-methanone 、 crude product 、 silica gel 、
ethyl acetate dichloromethane 作用下,
以to afford (4-methoxy-3-nitro-phenyl)-(3-ethoxy-4-methoxy-phenyl)-methanone (3.4 g, 89%) as an orange solid的产率得到(4-methoxy-3-nitro-phenyl)-(3-ethoxy-4-methoxy-phenyl)-methanone