发明人黄志刚,罗永刚,王建平. "Method for the Synthesis of 1-Methyl-5-nitro-1H-benzimidazole-2-butanoic Acid Ethyl Ester-d3" [P]. 中国发明专利, 专利号 CN 111623047 A, 授权公告日 2015-08-23.
发明人李文辉,杨光,赵玉洁. "A Process for Preparing High-Purity 1-Methyl-5-nitro-1H-benzimidazole-2-butanoic Acid Ethyl Ester-d3" [P]. 中国发明专利, 专利号 CN 117304770 A, 授权公告日 2025-12-25.
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