Invention Grant
- Patent Title: Astatine solution and method for producing same
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Application No.: US16958147Application Date: 2018-12-28
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Publication No.: US11684683B2Publication Date: 2023-06-27
- Inventor: Yoshifumi Shirakami , Tadashi Watabe , Kazuko Kaneda , Eku Shimosegawa , Atsushi Shinohara , Jun Hatazawa
- Applicant: OSAKA UNIVERSITY
- Applicant Address: JP Suita
- Assignee: OSAKA UNIVERSITY
- Current Assignee: OSAKA UNIVERSITY
- Current Assignee Address: JP Suita
- Agency: Leydig, Voit & Mayer, Ltd.
- Priority: JP 2017255109 2017.12.29
- International Application: PCT/JP2018/048442 2018.12.28
- International Announcement: WO2019/131998A 2019.07.04
- Date entered country: 2020-06-25
- Main IPC: A61K51/12
- IPC: A61K51/12 ; A61K47/22
Abstract:
The invention provides a method for producing a solution containing 211At− (astatide ion) at a high radiochemical purity by using 211At obtained by a nuclear reaction as a starting material, including a step of adding a reducing agent to a solution containing an impurity derived from 211At. The invention also provides a solution containing 211At− (astatide ion) at a radiochemical purity of not less than 30%.
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