The chemistry of N-hydroxyguanidines, focusing on photo-sensitized oxygenation and reaction with nitric oxide (NO), was examined. In the former reaction, a urea derivative wits obtained as the main product together with the generation of NO. On the other hand, in the latter case, oxidative nitrosation occurred under aerobic conditions to give a nitrosourea derivative. which wits also obtained from urea by the same treatment.
Photo-sensitized oxygenation of phenethylguanidoxime led to the effective production of an expected urea derivative along with generation of nitric oxide (NO) or its equivalent. The formation of both products could be reasonably explained by the mechanism based on singlet oxygen ene reaction of olefins. This should give a possible chemical model for the biological oxidation of Nω-hydroxy-L-arginine
Oxidation of N-hydroxyguanidine by nitric oxide and the possible generation of vasoactive species
作者:Jae Yoo、Jon M. Fukuto
DOI:10.1016/0006-2952(95)02098-5
日期:1995.12
previously that the N-hydroxyguanidine function of N-hydroxy-L-arginine can react with nitricoxide (NO) to generate other species that can act as potent vasodilators with different biological lifetimes than NO. The identities of these species have yet to be determined. Therefore, we have studied the reaction between NO and N-hydroxyguanidine and determined that N-hydroxyguanidine is capable of reducing
The present invention provides novel compounds that find use as imaging agents within nuclear medicine applications (e.g., PET imaging and SPECT imaging). The present invention also provides imaging compositions for use within nuclear medicine applications. Additionally, the present invention provides methods of imaging.
本发明提供了可在核医学应用(如 PET 成像和 SPECT 成像)中用作成像剂的新型化合物。本发明还提供了用于核医学应用的成像组合物。此外,本发明还提供成像方法。
COMPOUND TARGETING NOREPINEPHRINE TRANSPORTER
申请人:Guangzhou Miphere Medical Technology Co., Ltd.