Cl[C:2]1[N:7]=[CH:6][N:5]=[C:4]([N:8]2[CH:12]=[CH:11][CH:10]=[N:9]2)[CH:3]=1.[Na].[CH:14]([OH:17])([CH3:16])[CH3:15]>>[CH:14]([O:17][C:2]1[N:7]=[CH:6][N:5]=[C:4]([N:8]2[CH:12]=[CH:11][CH:10]=[N:9]2)[CH:3]=1)([CH3:16])[CH3:15]Following the procedure of Example 15, 180 mg of 6-chloro-4-(1-pyrazolyl)pyrimidine was reacted with 23 mg of sodium metal and 3 ml of anhydrous isopropylalcohol to yield 127 mg of an oily substance, 6-isopropoxy-4-(1-pyrazolyl)pyrimidine,
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