发明人罗永刚,张德明,徐明华. "Method for the Synthesis of 6-Chloro-6,7-dihydro-5H,9H-8-oxa-4b,10-diaza-benzo[a]azulene" [P]. 中国发明专利, 专利号 CN 115912360 B, 授权公告日 2017-09-02.
发明人高志强,孙丽萍,陈志强. "A Process for Preparing High-Purity 6-Chloro-6,7-dihydro-5H,9H-8-oxa-4b,10-diaza-benzo[a]azulene" [P]. 中国发明专利, 专利号 CN 109583246 A, 授权公告日 2018-01-16.
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