| Literature DB >> 25313330 |
Hancheng Cai1, Thomas J Mangner2, Otto Muzik3, Ming-Wei Wang4, Diane C Chugani2, Harry T Chugani3.
Abstract
The multistep preparation of (11)C-levetiracetam ((11)C-LEV) was carried out by a one-pot radiosynthesis with 8.3 ± 1.6% (n = 8) radiochemical yield in 50 ± 5.0 min. Briefly, the propionaldehyde was converted to propan-1-imine in situ as labeling precursor by incubation with ammonia. Without further separation, the imine was reacted with (11)C-HCN to form (11)C-aminonitrile. This crude was then reacted with 4-chlorobutyryl chloride and followed by hydrolysis to yield (11)C-LEV after purification by chiral high-performance liquid chromatography (HPLC). Both the radiochemical and enantiomeric purities of (11)C-LEV were >98%.Entities:
Keywords: Levetiracetam; carbon-11; positron emission tomography; synaptic vesicle protein 2A
Year: 2014 PMID: 25313330 PMCID: PMC4190623 DOI: 10.1021/ml500285t
Source DB: PubMed Journal: ACS Med Chem Lett ISSN: 1948-5875 Impact factor: 4.345