发明人李文辉,孙丽萍,何建平. "Method for the Synthesis of (4A'R,8a'R)-4',4a'-dihydrospiro[cyclohexane-1,2'-pyrano[3,2-d][1,3]dioxin]-8'(8a'H)-one" [P]. 中国发明专利, 专利号 CN 112592310 B, 授权公告日 2020-08-08.
发明人郑宇鹏,沈红梅,赵玉洁. "A Process for Preparing High-Purity (4A'R,8a'R)-4',4a'-dihydrospiro[cyclohexane-1,2'-pyrano[3,2-d][1,3]dioxin]-8'(8a'H)-one" [P]. 中国发明专利, 专利号 CN 112252613 B, 授权公告日 2022-09-17.
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