发明人孙丽萍,周伟,郭海燕. "Method for the Synthesis of 4-(Hydroxymethyl)-1-methyl-5-nitro-1H-pyrrole-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110457834 A, 授权公告日 2018-11-25.
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