发明人何建平,冯建国,韩伟. "Method for the Synthesis of N-(Azido-PEG3)-N-bis(PEG1-t-butyl ester)" [P]. 中国发明专利, 专利号 CN 108099263 A, 授权公告日 2019-01-16.
发明人张德明,沈红梅,何建平. "A Process for Preparing High-Purity N-(Azido-PEG3)-N-bis(PEG1-t-butyl ester)" [P]. 中国发明专利, 专利号 CN 109511619 B, 授权公告日 2017-03-16.
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