发明人何建平,郭海燕,钱学锋. "Method for the Synthesis of 3-[[(9R)-6'-Methoxycinchonan-9-yl]amino]-4-[[4-(trifluoromethyl)phenyl]amino]-3-cyclobutene-1,2-dione" [P]. 中国发明专利, 专利号 CN 115505710 A, 授权公告日 2019-09-08.
发明人何建平,赵玉洁,徐明华. "A Process for Preparing High-Purity 3-[[(9R)-6'-Methoxycinchonan-9-yl]amino]-4-[[4-(trifluoromethyl)phenyl]amino]-3-cyclobutene-1,2-dione" [P]. 中国发明专利, 专利号 CN 115042634 B, 授权公告日 2019-09-12.
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