18602-85-2Relevant articles and documents
Novel radiosynthesis of PET HSV-tk gene reporter probes [ 18F]FHPG and [18F]FHBG employing dual Sep-Pak SPE techniques
Wang, Ji-Quan,Zheng, Qi-Huang,Fei, Xiangshu,Mock, Bruce H.,Hutchins, Gary D.
, p. 3933 - 3938 (2003)
Positron emission tomography (PET) herpes simplex virus thymidine kinase (HSV-tk) gene reporter probes 9-[(3-[18F]fluoro-1-hydroxy-2-propoxy) methyl]guanine ([18F]FHPG) and 9-(4-[18F]fluoro-3- hydroxymethylbutyl)guanine ([18F]FHBG) were prepared by nucleophilic substitution of the appropriate tosylated precursors with [18F]KF/ Kryptofix 2.2.2 followed by a quick deprotection reaction and purification with a simplified dual Silica Sep-Pak solid-phase extraction (SPE) method in 15-30% radiochemical yield.
Silica sulfuric acid (SSA) as a highly efficient heterogeneous catalyst for persilylation of purine and pyrimidine nucleobases and other N-heterocycles using HMDS
Rad, Mohammad Navid Soltani,Khalafi-Nezhad, Ali,Divar, Masoumeh,Behrouz, Somayeh
experimental part, p. 1943 - 1954 (2010/11/16)
Purine and pyrimidine nucleobases and other N-heterocycles have been silylated with HMDS in excellent yields in the presence of a catalytic amount of silica sulfuric acid (SSA) as a heterogeneous catalyst. SSA utilizes a shorter reaction time and higher yields of silylated nucleobases. SSA is reusable for several times without a decrease in reactivity or yield of silylated adducts. Copyright
An Improved Total Synthesis of PET HSV-tk Gene Reporter Probe [18F]FHPG
Zheng, Q.-H.,Wang, J.-Q.,Fei, X.,Liu, X.,Gardner, T. A.,Kao, C.,Raikwar, S. P.,Glick-Wilson, B. E.,Sullivan, M. L.,Mock, B. H.,Hutchins, G. D.
, p. S221 - S221 (2007/10/03)
-
