Yamamoto T, Chen K W, Stevens L M. "一种的合成方法" [P]. US Patent, US 10486482 B2, 2015-02-19.
发明人黄志刚,高志强,胡光. "Method for the Synthesis of 3',6'-Dihydroxy-5-mercapto-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one" [P]. 中国发明专利, 专利号 CN 116416600 A, 授权公告日 2017-03-16.
发明人王建平,陈志强,孙丽萍. "A Process for Preparing High-Purity 3',6'-Dihydroxy-5-mercapto-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one" [P]. 中国发明专利, 专利号 CN 108633324 B, 授权公告日 2020-09-06.
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