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. 2023 Jun 28;14(14):2560–2568. doi: 10.1021/acschemneuro.3c00247

Table 1. Optimization of Radiosynthesis.

precursor (mg) alkylating agent solvent Temp (°C) RCC (%)
1.0 CH3I THF RT and 100 0
2.0 60 and 120 <1
5.0 60 and 120 <1
2.0 CH3I DMF RT and 100 <1
2.0 CH3I DMSO 100 0
2.0 CH3I acetonitrile RT and 80 0
1.0 CH3I dioxan 120 0
2.0 120 <1
1.0 (COD)PdMeCl THF 80 >20
100 >25
2.0 (COD)PdMeCl THF 110 >55
2.0 (COD)PdMeCl THF 135 >50
5.0 (COD)PdMeCl THF 110 >55
2.0 (COD)PdMeCl dioxan 110 >55
5.0 (COD)PdMeCl dioxan 110 >50