发明人马晓峰,郑宇鹏,周伟. "Method for the Synthesis of 3-Oxo-3',6'-bis(pivaloyloxy)-3H-spiro[isobenzofuran-1,9'-xanthene]-6-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117494530 B, 授权公告日 2020-12-11.
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