Schröder R, Mueller T C, Nowak P. "一种的合成方法" [P]. European Patent, EP 3286886 A1, 2023-10-26.
发明人李文辉,马晓峰,郑宇鹏. "Method for the Synthesis of 4-Ethoxy-2-(piperazin-1-yl)-7-(pyridin-4-yl)-5H-pyrimido[5,4-b]indole" [P]. 中国发明专利, 专利号 CN 115818155 B, 授权公告日 2019-09-17.
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