[CH3:1][C:2]([C:9]1[CH:10]=[N:11][CH:12]=[N:13][CH:14]=1)([CH3:8])[C:3]([O:5]CC)=[O:4].[OH-].[Li+:16].C1COCC1>C(O)(=O)C>[CH3:8][C:2]([C:9]1[CH:14]=[N:13][CH:12]=[N:11][CH:10]=1)([CH3:1])[C:3]([O-:5])=[O:4].[Li+:16]A mixture of ethyl 2-methyl-2-(5-pyrimidinyl)propionate (4.64 g), 1.0N lithium hydroxide (26 mL) and THF (100 mL) was heated to reflux under argon for 26 h. The mixture was allowed to cool, adjusted to pH 7 with acetic acid, and concentrated to dryness to give 4.11 g of lithium 2-methyl-2-(5-pyrimidinyl)propionate as a pale solid.
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