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发明人张德明,罗永刚,郑宇鹏. "Method for the Synthesis of Ethyl 4-amino-1-butyl-1H-pyrrole-3-carboxylate hydrochloride" [P]. 中国发明专利, 专利号 CN 110578181 B, 授权公告日 2020-06-10.
发明人韩伟,钱学锋,王建平. "A Process for Preparing High-Purity Ethyl 4-amino-1-butyl-1H-pyrrole-3-carboxylate hydrochloride" [P]. 中国发明专利, 专利号 CN 115306025 B, 授权公告日 2021-05-13.
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