发明人张德明,何建平,赵玉洁. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113778488 A, 授权公告日 2017-03-23.
发明人钱学锋,郭海燕,韩伟. "Method for the Synthesis of (2E)-4-(3-Hydroxy-2-nitrophenyl)-4-oxo-2-butenoic Acid Methyl Ester
224044-67-1" [P]. 中国发明专利, 专利号 CN 114159277 A, 授权公告日 2016-03-06.
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