发明人刘建华,孙丽萍,郭海燕. "Method for the Synthesis of 6-Chloropyrazolo[1,5-a]pyridine-2-carboxylic acid methyl ester" [P]. 中国发明专利, 专利号 CN 117260419 B, 授权公告日 2016-06-24.
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