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Solingapuram Sai KK, Donald Gage H, Almaguel F, Neth B, Hughes TM, Tremblay S, Castellano CA, Cunnane SC, Jorgensen MJ, Craft S, Mintz A. Automated synthesis of 1-[ 11C]acetoacetate on a TRASIS AIO module. Appl Radiat Isot 2017; 129:57-61. [PMID: 28806598 DOI: 10.1016/j.apradiso.2017.07.066] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 05/24/2017] [Accepted: 07/31/2017] [Indexed: 12/26/2022]
Abstract
We automated radiochemical synthesis of 1-[11C]acetoacetate in a commercially available radiochemistry module, TRASIS AllInOne by [11C]carboxylation of the corresponding enolate anion generated in situ from isopropenylacetate and MeLi, and purified by ion-exchange column resins.1-[11C]acetoacetate was synthesized with high radiochemical purity (95%) and specific activity (~ 66.6GBq/µmol, n = 30) with 35% radiochemical yield, decay corrected to end of synthesis. The total synthesis required ~ 16min. PET imaging studies were conducted with 1-[11C]acetoacetate in vervet monkeys to validate the radiochemical synthesis. Tissue uptake distribution was similar to that reported in humans.
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Affiliation(s)
| | - H Donald Gage
- Department of Radiology, Wake Forest School of Medicine, Winston Salem, NC, USA
| | - Frankis Almaguel
- Department of Radiology, Wake Forest School of Medicine, Winston Salem, NC, USA
| | - Bryan Neth
- Department of Internal Medicine, Wake Forest School of Medicine, Winston Salem, NC, USA
| | - Timothy M Hughes
- Department of Internal Medicine, Wake Forest School of Medicine, Winston Salem, NC, USA
| | - Sebastien Tremblay
- Research Center on Aging, Sherbrooke Molecular Imaging Center, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | | | - Stephen C Cunnane
- Research Center on Aging, Sherbrooke Molecular Imaging Center, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Matthew J Jorgensen
- Department of Pathology-Comparative Medicine, Wake Forest School of Medicine, USA
| | - Suzanne Craft
- Department of Internal Medicine, Wake Forest School of Medicine, Winston Salem, NC, USA
| | - Akiva Mintz
- Department of Radiology, Wake Forest School of Medicine, Winston Salem, NC, USA
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