Volume 43, Issue 9 pp. 1021-1028
Concise Report

Highly Water-Soluble Sulfonatopropoxylated Cucurbit[8]urils as Excipients for Drug Solubilization and Bioavailability Enhancement of Remdesivir

Jiabin Xing

Jiabin Xing

Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai, 200438 China

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Yong-Sheng Li

Yong-Sheng Li

Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai, 200438 China

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Qihan Lin

Qihan Lin

Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai, 200438 China

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Yue-Yang Liu

Yue-Yang Liu

Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai, 200438 China

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Qian Li

Qian Li

Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai, 200438 China

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Qiao-Yan Qi

Qiao-Yan Qi

State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032 China

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Hui Wang

Hui Wang

Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai, 200438 China

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Gang Zhao

Corresponding Author

Gang Zhao

School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, Guangdong, 518055 China

E-mail: [email protected]; [email protected]; [email protected]Search for more papers by this author
Jiaheng Zhang

Jiaheng Zhang

Sauvage Laboratory for Smart Materials, Harbin Institute of Technology, Shenzhen, Guangdong, 518055 China

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Dan-Wei Zhang

Dan-Wei Zhang

Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai, 200438 China

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Wei Zhou

Corresponding Author

Wei Zhou

Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai, 200438 China

E-mail: [email protected]; [email protected]; [email protected]Search for more papers by this author
Zhan-Ting Li

Corresponding Author

Zhan-Ting Li

Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai, 200438 China

State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032 China

E-mail: [email protected]; [email protected]; [email protected]Search for more papers by this author
First published: 31 January 2025

Comprehensive Summary

A series of sulfonatopropoxylated cucurbit[8]uril derivatives (SPECB8s) with water-solubility ranging from 344 mmol/L to 360 mmol/L have been prepared. One of the derivatives SPE5.5CB8 bearing an average of 5.5 sulfonatopropoxy side chains has been revealed to display high biocompatibility, with maximum tolerated dose being as high as 2500 mg/kg for mice. Phase solubility diagram investigations illustrate that SPE5.5CB8 can solubilize eighteen poorly soluble drugs and, for fifteen of them including remdesivir, its solubilization efficiency is higher than that of Captisol, the most widely used β-cyclodextrin-derived excipient for drug formulation. Moreover, the improved solubilization for remdesivir, which is formulated by Captisol for clinical use, can lead to important increase of its antiviral activity as compared with Captisol.

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