Improvement of End-of-Synthesis Radiochemical Purity of 177Lu-DOTA-PSMA-Ligands with Alternative Synthesis Approaches: Conversion Upswing and Side-Products Minimization
Anton Larenkov, Iurii Mitrofanov, Marat Rakhimov · 2024
Read Improvement of End-of-Synthesis Radiochemical Purity of 177Lu-DOTA-PSMA-Ligands with Alternative Synthesis Approaches: Conversion Upswing and Side-Products Minimization by Anton Larenkov, Iurii Mitrofanov, Marat Rakhimov (2024) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-11677419.txt.
Description
Radioactive drugs for prostate cancer must be made fresh and pure, but heat during synthesis can quietly damage them. Anton Larenkov, Iurii Mitrofanov, and Marat Rakhimov studied a lutetium-177 drug that targets prostate tumors. They found that the standard recipe, thirty minutes near boiling, spawns side products. One fragment folds into ring shapes with no grip on the tumor. Another piece breaks off entirely.
Together the impurities can reach a tenth of the batch, spoiling purity even when the labeling itself succeeds. Because heat and time drive the damage, the team tested microwave heating and added alcohol as a co-solvent. Both routes finished faster or cooler and cut the impurities sharply. The lesson likely applies to similar drugs built on the same fragment.
Catalog record
| CREATOR | Anton Larenkov, Iurii Mitrofanov, Marat Rakhimov |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 55 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |