Microwave-assisted solid-phase synthesis of nicotinyl hydrazones for use in radiochemistry of technetium-99m

Teixeira, Vania - Cabral González, Pablo - Porcal, Williams

Resumen:

We report a new method for efficient and rapid synthesis of HYNIC-hydrazone derivatives using microwaveassisted solid-phase. In comparison to the conventional heating procedure, microwave irradiation considerably accelerated the formation of HYNIC analogues. The synthesis time and efforts are significantly reduced in the present method, without side product formation. We proved that the HYNIC-hydrazone clustering can be directly labeled with technetium without exposing the free hydrazine group. Therefore, this is a useful tool to obtain HYNIC-bioconjugates for use in 99mTc radiochemistry.


Detalles Bibliográficos
2018
Chelation
Hydrazone
HYNIC
Microwave
Solid-phase
Technetium-99m
Inglés
Universidad de la República
COLIBRI
https://hdl.handle.net/20.500.12008/26344
Acceso abierto
Licencia Creative Commons Atribución (CC - By 4.0)
Resumen:
Sumario:We report a new method for efficient and rapid synthesis of HYNIC-hydrazone derivatives using microwaveassisted solid-phase. In comparison to the conventional heating procedure, microwave irradiation considerably accelerated the formation of HYNIC analogues. The synthesis time and efforts are significantly reduced in the present method, without side product formation. We proved that the HYNIC-hydrazone clustering can be directly labeled with technetium without exposing the free hydrazine group. Therefore, this is a useful tool to obtain HYNIC-bioconjugates for use in 99mTc radiochemistry.