发明人唐晓军,钱学锋,郭海燕. "Method for the Synthesis of Ethyl 4-chloroisoxazolo[5,4-d]pyrimidine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 110695783 B, 授权公告日 2018-07-21.
发明人张德明,陈志强,马晓峰. "A Process for Preparing High-Purity Ethyl 4-chloroisoxazolo[5,4-d]pyrimidine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 114268591 A, 授权公告日 2017-01-08.
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