Methyl iodide → (4S,5S)-tert-butyl 5-((tert-butyldimethylsilyloxy)methyl)-2,2-dimethyl-4-((2-methylthiazol-4-yl)methyl)oxazolidine-3-carboxylate

HRID 1697240ノート

反応式

HRID 1697240 の反応式
[Si:1]([O:8][CH2:9][C@H:10]1[O:14][C:13]([CH3:16])([CH3:15])[N:12]([C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[C@H:11]1[CH2:24][C:25]1[N:26]=[CH:27][S:28][CH:29]=1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].[CH2:30]([Li])CCC.IC>C1COCC1>[Si:1]([O:8][CH2:9][C@H:10]1[O:14][C:13]([CH3:15])([CH3:16])[N:12]([C:17]([O:19][C:20]([CH3:21])([CH3:23])[CH3:22])=[O:18])[C@H:11]1[CH2:24][C:25]1[N:26]=[C:27]([CH3:30])[S:28][CH:29]=1)([C:4]([CH3:5])([CH3:6])[CH3:7])([CH3:2])[CH3:3]

参加物

5

反応物 3

HCID 6328Methyl iodideHCID 67270188(4S,5S)-tert-butyl 5-((tert-butyldimethylsilyloxy)methyl)-2,2-dimethyl-4-(thiazol-4-ylmethyl)oxazolidine-3-carboxylateHCID 178418339Butyllithium

生成物 1

HCID 67270237(4S,5S)-tert-butyl 5-((tert-butyldimethylsilyloxy)methyl)-2,2-dimethyl-4-((2-methylthiazol-4-yl)methyl)oxazolidine-3-carboxylate

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

反応条件

温度
-50 °C

実験手順

(4S,5S)-Tert-butyl 5-((tert-butyldimethylsilyloxy)methyl)-2,2-dimethyl-4-(thiazol-4-ylmethyl)oxazolidine-3-carboxylate (0.100 g, 0.23 mmol) was dissolved in THF (2.5 mL) cooled to −78° C. n-Butyllithium (0.12 ml, 0.29 mmol) was added and the reaction was stirred at −50° C. for 40 minutes followed by the addition of iodomethane (0.018 ml, 0.29 mmol). After stirring 40 minutes the reaction was quenched with saturated ammonium chloride and extracted with ethyl acetate. The combined organic layers were washed with water, brine, and dried over sodium sulfate to afford the title compound. MS m/z: 457.3 (M+1).

後処理

  1. additionwas added
  2. stirringAfter stirring 40 minutes the reaction
  3. customwas quenched with saturated ammonium chloride
  4. extractionextracted with ethyl acetate
  5. washThe combined organic layers were washed with water, brine
  6. dry with materialdried over sodium sulfate

出典と根拠

ORDレコード
ord-2c94a48a54ea4bd7ae6393c9a26af266
出典データセット
uspto-grants-2012_04
特許番号
US08163909B2

反応ノート

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