发明人胡光,冯建国,徐明华. "Method for the Synthesis of 2-{2-oxo-1-oxa-4-thiaspiro[4.4]nonan-3-yl}acetic acid" [P]. 中国发明专利, 专利号 CN 109429506 A, 授权公告日 2016-11-19.
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