Thompson G K, Mueller T, Lee S K. "一种托法替布杂质180的合成方法" [P]. US Patent, US 10274011 B2, 2018-05-04.
发明人唐晓军,郭海燕,赵玉洁. "Method for the Synthesis of Tofacitinib Impurity 180" [P]. 中国发明专利, 专利号 CN 110964999 B, 授权公告日 2024-09-17.
发明人黄志刚,胡光,高志强. "A Process for Preparing High-Purity Tofacitinib Impurity 180" [P]. 中国发明专利, 专利号 CN 112159988 B, 授权公告日 2015-11-13.
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