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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
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HRID 1911849 반응식
[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]
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참가 물질

6

반응물 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

생성물 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-carboxylate수율 88.3%

시약·촉매·용매 2

HCID 7368(Trifluoromethyl)benzene용매HCID 8857Ethyl Acetate용매

실험 절차

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)+.

후처리

  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

출처 및 근거

ORD 기록
ord-7fd9c2ea4c14400f877e6bcfb24fe5a1
출처 데이터셋
uspto-grants-2013_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08604038B2

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