发明人何建平,林芳,刘建华. "一种6,7-二甲氧基异喹啉-4-甲腈的合成方法" [P]. 中国发明专利, 专利号 CN 110050704 A, 授权公告日 2019-05-07.
发明人冯建国,陈志强,孙丽萍. "Method for the Synthesis of 6,7-Dimethoxyisoquinoline-4-carbonitrile" [P]. 中国发明专利, 专利号 CN 114951549 B, 授权公告日 2025-03-07.
发明人李文辉,林芳,赵玉洁. "A Process for Preparing High-Purity 6,7-Dimethoxyisoquinoline-4-carbonitrile" [P]. 中国发明专利, 专利号 CN 114802094 A, 授权公告日 2018-11-26.
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