Mueller T, Lee S K, Williams B T. "Method for the Synthesis of (R)-6-chlorospiro[benzo[d][1,3]oxazine-4,3'-piperidin]-2(1H)-one hydrochloride" [P]. US Patent, US 11301453 B2, 2025-04-13.
发明人郑宇鹏,钱学锋,何建平. "A Process for Preparing High-Purity (R)-6-chlorospiro[benzo[d][1,3]oxazine-4,3'-piperidin]-2(1H)-one hydrochloride" [P]. 中国发明专利, 专利号 CN 111019539 A, 授权公告日 2024-02-05.
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