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Title:
RADIOACTIVE METAL COMPLEX AND METHOD FOR PRODUCING SAME, AND RADIOACTIVE METAL SCAVENGER
Document Type and Number:
WIPO Patent Application WO/2023/013589
Kind Code:
A1
Abstract:
Disclosed is a radioactive metal complex. Said radioactive metal complex has a radioactive metal element and a ligand derived from a compound represented by formula (1). The radioactive metal element is 89Zr or 225Ac. [In formula (1), n is 1-3. Q1, Q2, Q3 and Q4 represent groups selected from group A or the like, and at least three of said groups are groups selected from group A. Group A is a group comprising groups represented by formula (A1) or the like. (R1-R3 represent hydrogen atoms or the like.) Z1, Z2, Z3 and Z4 each represent a divalent linking group or the like. R represents a divalent linking group. However, when n is 1 and Q1, Q2, Q3 and Q4 are all groups represented by formula (A1), R is a hydrocarbylene group or the like.]

Inventors:
HOSODA HAJIME (JP)
KOBAYASHI NORIFUMI (JP)
YOKOFUJITA TOSHIYUKI (JP)
IMAI TOMOYUKI (JP)
KISHIMOTO SATOSHI (JP)
OTSUKA YUTA (JP)
Application Number:
PCT/JP2022/029509
Publication Date:
February 09, 2023
Filing Date:
August 01, 2022
Export Citation:
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Assignee:
SUMITOMO CHEMICAL CO (JP)
NIHON MEDIPHYSICS CO LTD (JP)
International Classes:
C07F5/00; A61K51/04; B01J20/22; C07F7/00
Domestic Patent References:
WO2020186328A12020-09-24
WO2020229974A12020-11-19
WO2018048879A12018-03-15
Foreign References:
JP2013519692A2013-05-30
JP2019508482A2019-03-28
Other References:
SANDRA HESKAMP; RENÉ RAAVÉ; OTTO BOERMAN; MARK RIJPKEMA; VICTOR GONCALVES; FRANCK DENAT: "89 Zr-Immuno-Positron Emission Tomography in Oncology: State-of-the-Art 89 Zr Radiochemistry", BIOCONJUGATE CHEMISTRY, vol. 28, no. 9, 20 September 2017 (2017-09-20), US , pages 2211 - 2223, XP055734862, ISSN: 1043-1802, DOI: 10.1021/acs.bioconjchem.7b00325
ERIC W. PRICE, CHRIS ORVIG: "Matching chelators to radiometals for radiopharmaceuticals", CHEMICAL SOCIETY REVIEWS, vol. 43, no. 1, 7 January 2014 (2014-01-07), UK , pages 260 - 290, XP055397567, ISSN: 0306-0012, DOI: 10.1039/C3CS60304K
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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