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Tert-Butylamine → tert-butyl (2R,5S)-2-[(R)-[6-(tert-butylamino)pyridin-3-yl]{[tert-butyl(dimethyl)silyl]oxy}methyl]-5-[4-(methoxycarbonyl)benzyl]pyrrolidine-1-carboxylate

HRID 1911849
ノート
印刷プレビュー

反応式

HRID 1911849 の反応式
[Si:1]([O:8][C@H:9]([C:33]1[CH:34]=[N+:35]([O-])[CH:36]=[CH:37][CH:38]=1)[C@H:10]1[CH2:14][CH2:13][C@@H:12]([CH2:15][C:16]2[CH:21]=[CH:20][C:19]([C:22]([O:24][CH3:25])=[O:23])=[CH:18][CH:17]=2)[N:11]1[C:26]([O:28][C:29]([CH3:32])([CH3:31])[CH3:30])=[O:27])([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].[C:40]([NH2:44])([CH3:43])([CH3:42])[CH3:41].C1(C)C=CC(S(OS(C2C=CC(C)=CC=2)(=O)=O)(=O)=O)=CC=1>FC(F)(F)C1C=CC=CC=1.CCOC(C)=O>[C:40]([NH:44][C:36]1[N:35]=[CH:34][C:33]([C@@H:9]([O:8][Si:1]([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2])[C@H:10]2[CH2:14][CH2:13][C@@H:12]([CH2:15][C:16]3[CH:21]=[CH:20][C:19]([C:22]([O:24][CH3:25])=[O:23])=[CH:18][CH:17]=3)[N:11]2[C:26]([O:28][C:29]([CH3:32])([CH3:31])[CH3:30])=[O:27])=[CH:38][CH:37]=1)([CH3:43])([CH3:42])[CH3:41]
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 3

HCID 6385Tert-ButylamineHCID 77773Toluene-p-sulphonic anhydrideHCID 86670463tert-butyl (2R,5S)-2-[(R)-{[tert-butyl(dimethyl)silyl]oxy}(1-oxidopyridin-3-yl)methyl]-5-[4-(methoxycarbonyl)benzyl]pyrrolidine-1-carboxylate

生成物 1

HCID 86670465tert-butyl (2R,5S)-2-[(R)-[6-(tert-butylamino)pyridin-3-yl]{[tert-butyl(dimethyl)silyl]oxy}methyl]-5-[4-(methoxycarbonyl)benzyl]pyrrolidine-1-carboxylate収率 88.3%

試薬・触媒・溶媒 2

HCID 7368(Trifluoromethyl)benzene溶媒HCID 8857Ethyl Acetate溶媒

実験手順

A solution of tert-butyl (2R,5S)-2-[(R)-{[tert-butyl(dimethyl)silyl]oxy}(1-oxidopyridin-3-yl)methyl]-5-[4-(methoxycarbonyl)benzyl]pyrrolidine-1-carboxylate (0.049 g, 0.087 mmol) in trifluorotoluene (2 mL) was cooled to 0° C. Tert-butylamine (0.046 mL, 0.44 mmol) was added, followed by p-toluenesulfonic anhydride (0.057 g, 0.18 mmol). After 1 hour, the reaction was diluted with EtOAc (50 mL) and washed with water (15 mL) and brine (15 mL). The organic layer was dried over Na2SO4, filtered, and concentrated in vacuo. The residue was purified by silica gel chromatography with 0-45% EtOAc/hexanes to afford 47 mg of impure tert-butyl (2R,5S)-2-[(R)-[6-(tert-butylamino)pyridin-3-yl]{[tert-butyl(dimethyl)silyl]oxy}methyl]-5-[4-(methoxycarbonyl)benzyl]pyrrolidine-1-carboxylate. LC-MS=6123 (M−H)+.

後処理

  1. washwashed with water (15 mL) and brine (15 mL)
  2. dry with materialThe organic layer was dried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by silica gel chromatography with 0-45% EtOAc/hexanes

出典と根拠

ORDレコード
ord-7fd9c2ea4c14400f877e6bcfb24fe5a1
出典データセット
uspto-grants-2013_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08604038B2

反応ノート

読み込み中…

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