Water → (2S,4S)-tert-butyl 2-((tert-butyldiphenylsilyloxy)methyl)-4-(methylsulfonyloxy)pyrrolidine-1-carboxylate

HRID 516151ノート

反応式

HRID 516151 の反応式
[Si:1]([O:18][CH2:19][C@@H:20]1[CH2:24][C@@H:23]([OH:25])[CH2:22][N:21]1[C:26]([O:28][C:29]([CH3:32])([CH3:31])[CH3:30])=[O:27])([C:14]([CH3:17])([CH3:16])[CH3:15])([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(N(CC)CC)C.[CH3:40][S:41](Cl)(=[O:43])=[O:42].O>C(Cl)(Cl)Cl>[Si:1]([O:18][CH2:19][C@@H:20]1[CH2:24][C@H:23]([O:25][S:41]([CH3:40])(=[O:43])=[O:42])[CH2:22][N:21]1[C:26]([O:28][C:29]([CH3:32])([CH3:31])[CH3:30])=[O:27])([C:14]([CH3:16])([CH3:17])[CH3:15])([C:8]1[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

参加物

6

反応物 4

HCID 962WaterHCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 69332404HCID 69332404、化合物

生成物 1

HCID 86653919(2S,4S)-tert-butyl 2-((tert-butyldiphenylsilyloxy)methyl)-4-(methylsulfonyloxy)pyrrolidine-1-carboxylate

試薬・触媒・溶媒 1

HCID 6212Chloroform溶媒2 回

実験手順

(2S,4R)-tert-Butyl 2-((tert-butyldiphenylsilyloxy)methyl)-4-hydroxypyrrolidine-1-carboxylate (300 mg) obtained in Step 1 above was dissolved in chloroform (3.0 ml). Triethylamine (137 μl) and methanesulfonyl chloride (56 μl) were added to the solution at 0° C. After stirring at room temperature for 2.0 hours, chloroform and water were added thereto to separate the organic layer. The organic layer was dried over anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure to obtain the title compound as a colorless, oily compound (389 mg). Physical properties: m/z[M+H]+ 534.1

後処理

  1. customto separate the organic layer
  2. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
  3. distillationthe solvent was distilled off under reduced pressure

出典と根拠

ORDレコード
ord-7f9e4f985f234bbb99c70820e57abc59
出典データセット
uspto-grants-2015_08
特許番号
US09108973B2

反応ノート

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