Iodine → 2-Chloro-6-iodo-4-morpholinofuro[3,2-d]pyrimidine

HRID 390815ノート

反応式

HRID 390815 の反応式
[Cl:1][C:2]1[N:3]=[C:4]([N:11]2[CH2:16][CH2:15][O:14][CH2:13][CH2:12]2)[C:5]2[O:10][CH:9]=[CH:8][C:6]=2[N:7]=1.C([Li])CCC.[I:22]I>C1COCC1>[Cl:1][C:2]1[N:3]=[C:4]([N:11]2[CH2:16][CH2:15][O:14][CH2:13][CH2:12]2)[C:5]2[O:10][C:9]([I:22])=[CH:8][C:6]=2[N:7]=1

参加物

5

反応物 3

HCID 807IodineHCID 568337412-Chloro-4-morpholinofuro[3,2-d]pyrimidineHCID 178418339Butyllithium

生成物 1

HCID 595930702-Chloro-6-iodo-4-morpholinofuro[3,2-d]pyrimidine収率 83%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒2 回

反応条件

温度
-78 °C

実験手順

To a solution of 2-chloro-4-morpholinofuro[3,2-d]pyrimidine 38 (50 mg, 1.0 eq) dissolved in THF (2.1 ml) at −78° C. was added 1.6M solution of n-butyllithium (0.17 ml, 1.3 eq, 1.6M in hexanes). Reaction mixture was stirred at −78° C. for 30 minutes. A solution of iodine (159 mg, 3.0 eq) in THF (0.6 ml) was added and reaction mixture was allowed to slowly warm up to room temperature and stirred for 45 minutes. The reaction mixture was quenched with saturated aq. Na2S2O3, and extracted with dichloromethane. The combined organic layers were dried (Na2SO4) and concentrated. The crude reaction mixture was purified by flash chromatography to yield 2-chloro-6-iodo-4-morpholinofuro[3,2-d]pyrimidine 45 (63 mg, 83%): MS (Q1) 366 (M)+.

後処理

  1. customReaction mixture
  2. customreaction mixture
  3. temperatureto slowly warm up to room temperature
  4. stirringstirred for 45 minutes
  5. customThe reaction mixture was quenched with saturated aq. Na2S2O3
  6. extractionextracted with dichloromethane
  7. dry with materialThe combined organic layers were dried (Na2SO4)
  8. concentrationconcentrated
  9. customThe crude reaction mixture
  10. customwas purified by flash chromatography

出典と根拠

ORDレコード
ord-5299dac637004dddb28ea8a72459849e
出典データセット
uspto-grants-2013_02
特許番号
US08383620B2

反応ノート

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