Lithium Hexamethyldisilazide → N-(5-tert-butyl-3-methanesulfonylamino-2-methoxy-phenyl)-4-methyl-3-[4-(3-methyl-3H-imidazol-4-yl)-pyrazol-1-yl]-benzamide

HRID 1350716노트

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HRID 1350716 반응식
[NH2:1][C:2]1[C:3]([O:17][CH3:18])=[C:4]([NH:12][S:13]([CH3:16])(=[O:15])=[O:14])[CH:5]=[C:6]([C:8]([CH3:11])([CH3:10])[CH3:9])[CH:7]=1.[Li]CCCC.[Li+].C[Si]([N-][Si](C)(C)C)(C)C.C([O:36][C:37](=O)[C:38]1[CH:43]=[CH:42][C:41]([CH3:44])=[C:40]([N:45]2[CH:49]=[C:48]([C:50]3[N:51]([CH3:55])[CH:52]=[N:53][CH:54]=3)[CH:47]=[N:46]2)[CH:39]=1)C>C1COCC1.CO>[C:8]([C:6]1[CH:5]=[C:4]([NH:12][S:13]([CH3:16])(=[O:15])=[O:14])[C:3]([O:17][CH3:18])=[C:2]([NH:1][C:37](=[O:36])[C:38]2[CH:43]=[CH:42][C:41]([CH3:44])=[C:40]([N:45]3[CH:49]=[C:48]([C:50]4[N:51]([CH3:55])[CH:52]=[N:53][CH:54]=4)[CH:47]=[N:46]3)[CH:39]=2)[CH:7]=1)([CH3:10])([CH3:11])[CH3:9]

참가 물질

7

반응물 4

HCID 2733832Lithium HexamethyldisilazideHCID 10214710N-(3-amino-5-tert-butyl-2-methoxy-phenyl)-methanesulfonamideHCID 588612804-methyl-3-[4-(3-methyl-3H-imidazol-4-yl)-pyrazol-1-yl]-benzoic acid ethyl esterHCID 178418339Butyllithium

생성물 1

HCID 21097201N-(5-tert-butyl-3-methanesulfonylamino-2-methoxy-phenyl)-4-methyl-3-[4-(3-methyl-3H-imidazol-4-yl)-pyrazol-1-yl]-benzamide수율 33.6%

시약·촉매·용매 2

HCID 887Methanol용매HCID 8028Tetrahydrofuran용매2회

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온도
-78 °C

실험 절차

A solution of N-(3-amino-5-tert-butyl-2-methoxy-phenyl)-methane-sulfonamide (81 mg, 0.261 mmol) in THF (4 mL) was stirred in a bath cooled to −78° C., and n-BuLi (0.22 mL, 0.548 mmol) was added slowly. The cold bath was removed, and the reaction was allowed to stir for 30 min. LHMDS (0.261 mmol) was then added slowly. The suspension was transferred dropwise to a stirring solution of compound 4-methyl-3-[4-(3-methyl-3H-imidazol-4-yl)-pyrazol-1-yl]-benzoic acid ethyl ester (81 mg, 0.261 mmol) in THF at 0° C. After 30 min cole MeOH was added and the mixture was partitioned between saturated NH4Cl and EtOAc, then extracted with EtOAc (3×). The organic combined extracts were washed with brine, dried over Na2SO4, filtered, and concentrated, and chromatographed (1% MeOH (with 5% NH4OH)/CH2Cl2 to 5% MeOH (with 5% NH4H)/CH2Cl2) to afford N-(5-tert-butyl-3-methanesulfonylamino-2-methoxy-phenyl)-4-methyl-3-[4-(3-methyl-3H-imidazol-4-yl)-pyrazol-1-yl]-benzamide (47 mg, 33%) as an orange foam: ESI MS m/z=537 [C27H32N6O4S+H]+.

후처리

  1. customThe cold bath was removed
  2. customthe mixture was partitioned between saturated NH4Cl and EtOAc
  3. extractionextracted with EtOAc (3×)
  4. washThe organic combined extracts were washed with brine
  5. dry with materialdried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customchromatographed (1% MeOH (with 5% NH4OH)/CH2Cl2 to 5% MeOH (with 5% NH4H)/CH2Cl2)

출처 및 근거

ORD 기록
ord-a17f9b68046842fb954ab17972fda926
출처 데이터셋
uspto-grants-2007_05
특허 번호
US07214802B2

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