发明人赵玉洁,高志强,刘建华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109292213 A, 授权公告日 2019-06-09.
发明人韩伟,唐晓军,孙丽萍. "Method for the Synthesis of 4-Cyanobenzo[d]oxazole-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116695593 B, 授权公告日 2019-02-07.
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