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Enhancing Efficiency and Radiolabeling Yields of Carbon-11 Radioligands for Clinical Research Using the Loop Method

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MDV3100: Tritium labeling at high specific activity.

Chang Byon¹, Sarvajit Chakravarty², Crist N Filer¹

¹PerkinElmer Health Sciences Inc., 940 Winter Street, Waltham, MA 02451, USA.

Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine

|December 22, 2015

Summary

A new method efficiently tritiates MDV3100, a drug candidate, achieving high specific activity for research applications.

Keywords:

Androgen receptor MDV3100 Tritium Tritium NMR

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Area of Science:

Radiochemistry
Medicinal Chemistry

Background:

MDV3100 (Enzalutamide) is an important androgen receptor inhibitor used in prostate cancer therapy.
High specific activity radiolabeled compounds are crucial for in vivo imaging and pharmacokinetic studies.

Purpose of the Study:

To develop an efficient and reliable method for the synthesis of tritium-labeled MDV3100 ([(3)H]MDV3100).
To achieve high specific activity for the radiolabeled tracer.

Main Methods:

The study describes a novel synthetic route for introducing tritium into the MDV3100 molecule.
Optimization of reaction conditions to maximize yield and specific activity.

Main Results:

Successful synthesis of MDV3100 labeled with tritium at high specific activity.
The developed method is efficient and reproducible.

Conclusions:

The described method provides a valuable tool for producing [(3)H]MDV3100.
This facilitates further preclinical and clinical research involving MDV3100.