发明人张德明,孙丽萍,罗永刚. "Method for the Synthesis of Abacavir Impurity 20" [P]. 中国发明专利, 专利号 CN 112429920 B, 授权公告日 2021-06-22.
发明人高志强,杨光,郑宇鹏. "A Process for Preparing High-Purity Abacavir Impurity 20" [P]. 中国发明专利, 专利号 CN 108015739 A, 授权公告日 2025-05-05.
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