发明人唐晓军,周伟,胡光. "Method for the Synthesis of Olodaterol impurity 34" [P]. 中国发明专利, 专利号 CN 116542023 B, 授权公告日 2020-01-20.
发明人刘建华,林芳,孙丽萍. "A Process for Preparing High-Purity Olodaterol impurity 34" [P]. 中国发明专利, 专利号 CN 113941507 B, 授权公告日 2023-02-10.
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