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发明人黄志刚,韩伟,郭海燕. "A Process for Preparing High-Purity 3-oxotetrahydro-1H-pyrrolizine-7a(5H)-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117349859 B, 授权公告日 2020-08-11.
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