发明人高志强,唐晓军,沈红梅. "Method for the Synthesis of Azido-PEG3-Sulfone-PEG4-acid" [P]. 中国发明专利, 专利号 CN 108391976 B, 授权公告日 2017-12-14.
发明人李文辉,郑宇鹏,赵玉洁. "A Process for Preparing High-Purity Azido-PEG3-Sulfone-PEG4-acid" [P]. 中国发明专利, 专利号 CN 117761851 B, 授权公告日 2018-07-11.
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