Chen K W, Lee S K, Kumar R. "一种rac-(5R,6R)-7-methyl-8-oxo-6-phenyl-7-azaspiro[3.5]nonane-5-carboxylic acid的合成方法" [P]. US Patent, US 9458778 B2, 2016-04-27.
发明人朱建伟,沈红梅,王建平. "Method for the Synthesis of rac-(5R,6R)-7-methyl-8-oxo-6-phenyl-7-azaspiro[3.5]nonane-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108364081 B, 授权公告日 2025-02-09.
发明人刘建华,胡光,孙丽萍. "A Process for Preparing High-Purity rac-(5R,6R)-7-methyl-8-oxo-6-phenyl-7-azaspiro[3.5]nonane-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114570750 A, 授权公告日 2024-02-05.
参考文献 Literature
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