发明人张德明,沈红梅,孙丽萍. "Method for the Synthesis of 3-Ethyl-6-(4-methoxyphenyl)isoxazolo[5,4-b]pyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109928878 A, 授权公告日 2021-06-16.
发明人赵玉洁,沈红梅,韩伟. "A Process for Preparing High-Purity 3-Ethyl-6-(4-methoxyphenyl)isoxazolo[5,4-b]pyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115768905 B, 授权公告日 2023-06-05.
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