Trifluoroacetic acid → (2R)-2-amino-N-[2-(7-methylspiro[2H-benzofuran-3,1'-cyclopropane]-4-yl)oxypyrimidin-5-yl]butanamide

HRID 2278315노트

반응식

HRID 2278315 반응식
[CH3:1][C:2]1[C:7]2[O:8][CH2:9][C:10]3([CH2:12][CH2:11]3)[C:6]=2[C:5]([O:13][C:14]2[N:19]=[CH:18][C:17]([NH:20][C:21]([C@H:23]([NH:26]C(=O)OC(C)(C)C)[CH2:24][CH3:25])=[O:22])=[CH:16][N:15]=2)=[CH:4][CH:3]=1.C(O)(C(F)(F)F)=O>C(Cl)Cl>[NH2:26][C@H:23]([CH2:24][CH3:25])[C:21]([NH:20][C:17]1[CH:16]=[N:15][C:14]([O:13][C:5]2[C:6]3[C:10]4([CH2:9][O:8][C:7]=3[C:2]([CH3:1])=[CH:3][CH:4]=2)[CH2:12][CH2:11]4)=[N:19][CH:18]=1)=[O:22]

참가 물질

4

반응물 2

HCID 6422Trifluoroacetic acidHCID 86698450tert-butyl N-[(1R)-1-[[2-(7-methylspiro[2H-benzofuran-3,1'-cyclopropane]-4-yl)oxypyrimidin-5-yl]carbamoyl]propyl]carbamate2회

생성물 1

HCID 67959687(2R)-2-amino-N-[2-(7-methylspiro[2H-benzofuran-3,1'-cyclopropane]-4-yl)oxypyrimidin-5-yl]butanamide수율 76.3%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

To a solution of tert-butyl N-[(1R)-1-[[2-(7-methylspiro[2H-benzofuran-3,1′-cyclopropane]-4-yl)oxypyrimidin-5-yl]carbamoyl]propyl]carbamate (Intermediate 20, 42 mg) in dry DCM (3 ml) at 0° C. TFA (1 ml) was slowly added and the reaction mixture was stirred for 3 hours at the same temperature. The solvent and the excess of TFA were removed under reduced pressure and the residue was diluted with DCM (10 ml) and an aqueous saturated solution NaHCO3 was added while the pH was allowed to reach ˜8. Two phases were separated and the organic layer was dried (Na2SO4), filtered and evaporated affording the title compound (25 mg) as light yellow gum.

후처리

  1. customat 0° C
  2. customThe solvent and the excess of TFA were removed under reduced pressure
  3. additionthe residue was diluted with DCM (10 ml)
  4. additionan aqueous saturated solution NaHCO3 was added while the pH
  5. customTwo phases were separated
  6. dry with materialthe organic layer was dried (Na2SO4)
  7. filtrationfiltered
  8. customevaporated

출처 및 근거

ORD 기록
ord-565a3555420c47e9a53ec54f6120342d
출처 데이터셋
uspto-grants-2015_09
특허 번호
US09133175B2

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