Sodium Hydroxide → 4-[2-(5-Chloro-2-fluorophenyl)-6,7-dihydrofuro[3,2-d]pyrimidin-4-ylamino]-nicotinic acid
反応式
C([O:3][C:4](=[O:29])[C:5]1[C:10]([NH:11][C:12]2[C:13]3[O:28][CH2:27][CH2:26][C:14]=3[N:15]=[C:16]([C:18]3[CH:23]=[C:22]([Cl:24])[CH:21]=[CH:20][C:19]=3[F:25])[N:17]=2)=[CH:9][CH:8]=[N:7][CH:6]=1)C.[OH-].[Na+]>CO>[Cl:24][C:22]1[CH:21]=[CH:20][C:19]([F:25])=[C:18]([C:16]2[N:17]=[C:12]([NH:11][C:10]3[C:5]([C:4]([OH:29])=[O:3])=[CH:6][N:7]=[CH:8][CH:9]=3)[C:13]3[O:28][CH2:27][CH2:26][C:14]=3[N:15]=2)[CH:23]=1参加物
4
実験手順
To a suspension of 4-[2-(5-chloro-2-fluorophenyl)-6,7-dihydrofuro[3,2-d]pyrimidin-4-ylamino]-nicotinic acid ethyl ester (100 mg, 0.24 mmol, 1 eq) in MeOH (5 ml) was added a 1 N NaOH(aq) solution (290 μl, 0.29 mmol, 1.2 eq) and the reaction mixture was refluxed for 5 h. The solution was cooled to r.t. and concentrated in vacuo. Water (20 ml) was added to the crude material and the aqueous layer was acidified to pH 4. The solid was filtered, washed with water (2×5 ml) and dried overnight to afford 4-[2-(5-chloro-2-fluorophenyl)-6,7-dihydrofuro[3,2-d]pyrimidin-4-ylamino]-nicotinic acid (88 mg, 94%) as a cream colored solid.