发明人王建平,林芳,陈志强. "Method for the Synthesis of 5-Chloro-7-nitro-1h-indole-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110859941 B, 授权公告日 2020-06-22.
Stevens L M, Patel M V, O'Brien P Q. "A Process for Preparing High-Purity 5-Chloro-7-nitro-1h-indole-2-carboxylic acid" [P]. US Patent, US 9458729 B2, 2019-11-05.
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