发明人杨光,高志强,韩伟. "Method for the Synthesis of 4-(Bis(2-(diphenylphosphino)ethyl)carbamoyl)phthalic acid" [P]. 中国发明专利, 专利号 CN 110735663 B, 授权公告日 2023-08-22.
发明人周伟,冯建国,郑宇鹏. "A Process for Preparing High-Purity 4-(Bis(2-(diphenylphosphino)ethyl)carbamoyl)phthalic acid" [P]. 中国发明专利, 专利号 CN 109182298 B, 授权公告日 2020-09-11.
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