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发明人胡光,沈红梅,何建平. "Method for the Synthesis of Etonogestrel USP Related Compound B" [P]. 中国发明专利, 专利号 CN 112459406 B, 授权公告日 2020-06-16.
发明人赵玉洁,王建平,高志强. "A Process for Preparing High-Purity Etonogestrel USP Related Compound B" [P]. 中国发明专利, 专利号 CN 109495615 A, 授权公告日 2023-05-10.
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