发明人郭海燕,高志强,钱学锋. "Method for the Synthesis of 6-(Pyridin-3-ylamino)picolinic acid dihydrochloride" [P]. 中国发明专利, 专利号 CN 109165829 A, 授权公告日 2017-10-12.
发明人何建平,唐晓军,朱建伟. "A Process for Preparing High-Purity 6-(Pyridin-3-ylamino)picolinic acid dihydrochloride" [P]. 中国发明专利, 专利号 CN 115793585 B, 授权公告日 2018-09-10.
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