发明人张德明,朱建伟,陈志强. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117385651 A, 授权公告日 2015-06-08.
发明人黄志刚,林芳,郭海燕. "Method for the Synthesis of (S)-1-(tert-Butoxycarbonyl)-5'-methyl-4',5'-dihydrospiro[piperidine-4,7'-thieno[2,3-c]pyran]-2'-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117593925 A, 授权公告日 2025-03-18.
发明人张德明,沈红梅,徐明华. "A Process for Preparing High-Purity (S)-1-(tert-Butoxycarbonyl)-5'-methyl-4',5'-dihydrospiro[piperidine-4,7'-thieno[2,3-c]pyran]-2'-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116449371 A, 授权公告日 2023-11-22.
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