发明人徐明华,孙丽萍,胡光. "Method for the Synthesis of 4,5,6,7-Tetrahydro-1H-benzo[d]imidazole-7-carboxylic acid hydrochloride" [P]. 中国发明专利, 专利号 CN 112622763 B, 授权公告日 2019-06-03.
发明人韩伟,林芳,唐晓军. "A Process for Preparing High-Purity 4,5,6,7-Tetrahydro-1H-benzo[d]imidazole-7-carboxylic acid hydrochloride" [P]. 中国发明专利, 专利号 CN 111435120 B, 授权公告日 2024-08-09.
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