发明人沈红梅,胡光,杨光. "Method for the Synthesis of 3-(2-Hydroxy-2-methylbenzo[d]oxazol-3(2H)-yl)propane-1-sulfonic acid" [P]. 中国发明专利, 专利号 CN 114589023 B, 授权公告日 2022-07-23.
发明人李文辉,韩伟,林芳. "A Process for Preparing High-Purity 3-(2-Hydroxy-2-methylbenzo[d]oxazol-3(2H)-yl)propane-1-sulfonic acid" [P]. 中国发明专利, 专利号 CN 115408750 B, 授权公告日 2025-10-03.
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