[CH2:1]([O:4][C:5]([C:7]1[C:8]([O:14][CH2:15][CH:16]2[CH2:23][CH2:22][C:19]3([CH2:21][CH2:20]3)[CH2:18][CH2:17]2)=[N:9][C:10](Cl)=[N:11][CH:12]=1)=[O:6])[CH:2]=[CH2:3].[C-]#N.[K+].C1N2CC[N:29](CC2)[CH2:28]1.O>CS(C)=O>[CH2:1]([O:4][C:5]([C:7]1[C:8]([O:14][CH2:15][CH:16]2[CH2:23][CH2:22][C:19]3([CH2:21][CH2:20]3)[CH2:18][CH2:17]2)=[N:9][C:10]([C:28]#[N:29])=[N:11][CH:12]=1)=[O:6])[CH:2]=[CH2:3]To a solution of the 2-chloro-4-(spiro[2.5]oct-6-ylmethoxy)pyrimidine-5-carboxylic acid allyl ester (0.62 mmol) in DMSO (1.0 mL) are added KCN (0.94 mmol), DABCO (0.19 mmol), and H2O (0.10 mL) at room temperature. The reaction mixture is stirred at room temperature for 0.5 h and the reaction is quenched by the addition of water. The mixture is extracted with AcOEt. The organic extracts are washed with brine, dried over Na2SO4, filtered, and concentrated in vacuo. The resulting residue is purified by silica gel column chromatography to give the titled compound; 1H NMR (CDCl3) δ 0.19-0.20 (m, 2H), 0.21-0.33 (m, 2H), 0.91-0.96 (m, 2H), 1.23-1.33 (m, 3H), 1.72-1.85 (m, 4H), 4.38 (d, 2H), 4.84 (d, 2H), 5.31-5.45 (m, 1H), 9.01 (s, 1H).
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