39 results about "Radiosynthesis" patented technology

Macro- and microfluidic devices and related technologies, and chemical processes using such devices. More specifically, the devices may be used for a fully automated synthesis of radioactive compounds for imaging, such as by positron emission tomography (PET), in an efficient, compact and safe to the operator manner. In particular, embodiments of the present invention relate to an automated, multi-run, microfluidic instrument for the multi-step synthesis of radiopharmaceuticals, such as PET probes, comprising a remote shielded mini-cell containing radiation-handing components.

Methods and devices for a fully automated synthesis of radioactive compounds for imaging, such as by positron emission tomography (PET), in a fast, efficient and compact manner are disclosed. In particular, the various embodiments of the present invention provide an automated, stand-alone, hands-free operation of the entire radiosynthesis cycle on a microfluidic device with unrestricted gas flow through the reactor, starting with target water and yielding purified PET radiotracer within a period of time shorter than conventional chemistry systems. Accordingly, one aspect of the present invention is related to a microfluidic chip for radiosynthesis of a radiolabeled compound, comprising a reaction chamber, one or more flow channels connected to the reaction chamber, one or more vents connected to said reaction chamber, and one or more integrated valves to effect flow control in and out of said reaction chamber.

An HPLC module utilizes a combination of compound-dedicated hardware providing line clearance between differing radiosynthesis and includes multiple compound-dedicated HPLC inject valves, each inject valve directing a fluid to a serially-connected HPLC column and UV flowcell so as to prevent cross-contamination between differing radiopharmaceutical syntheses. The module provides a disposable fluid path from each UV flowcell allowing for radioactive detection, fraction collection, formulation and final product dispensing. In this manner, a level of GMP compliance is achieved that is suitable for meeting the requirements of an MHRA approved site-license.

The present invention relates to methods of synthesizing 18F-FMAU. In particular, 18F-FMAU is synthesized using one-pot reaction conditions in the presence of Friedel-Crafts catalysts. The one-pot reaction conditions are incorporated into a fully automated cGMP-compliant radiosynthesis module, which results in a reduction in synthesis time and simplifies reaction conditions. The one-pot reaction conditions are also suitable for the production of 5-substituted thymidine or cytidine analogs. The products from the one-pot reaction (e.g. the labeled thymidine or cytidine analogs) can be used as probes for imaging tumor proliferative activity. More specifically, these [18F]-labeled thymidine or cytidine analogs can be used as a PET tracer for certain medical conditions, including, but not limited to, cancer disease, autoimmunity inflammation, and bone marrow transplant.

The invention provides a precursor compound of a novel histamine H3 receptor PET (Positron Emission Tomography) ligand and a preparation method of the precursor compound. The precursor compound is mainly used for radiosynthesis of a PET radioligand of a histamine H3 receptor in a later period and is applied to PET detection of animal brains. The precursor compound has the advantages that a carbon chain structure of the precursor compound of the histamine H3 receptor PET ligand can flexibly rotate, and in addition, the energy of a rotation energy barrier of ether bonds is small, so that when the precursor compound is combined with the receptor, the self structure of the precursor compound can be adjusted so as to better coincide with a bonding joint of the receptor, and further, the bonding force is enhanced; and synthetic reaction conditions are mild, the reaction yield is high, and products are easy to separate and purify.

The present invention relates to 18F radio-chemistry and in particular to a method for synthesising radiofluorinated amides and amines. The method of the invention has particular application in the radiosynthesis of a variety of 18F-labelled positron emission tomography (PET) tracers.