1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole → (Rac)-3-[1-(6-fluoro-1-methyl-1h-indazol-5-yl)-ethyl]-6-(1-methyl-1h-pyrazol-4-yl)-imidazo[1,2-b]pyridazine

HRID 69278노트

반응식

HRID 69278 반응식
Cl[C:2]1[CH:3]=[CH:4][C:5]2[N:6]([C:8]([CH:11]([C:13]3[CH:14]=[C:15]4[C:19](=[CH:20][C:21]=3[F:22])[N:18]([CH3:23])[N:17]=[CH:16]4)[CH3:12])=[CH:9][N:10]=2)[N:7]=1.[CH3:24][N:25]1[CH:29]=[C:28](B2OC(C)(C)C(C)(C)O2)[CH:27]=[N:26]1>COCCOC>[F:22][C:21]1[CH:20]=[C:19]2[C:15]([CH:16]=[N:17][N:18]2[CH3:23])=[CH:14][C:13]=1[CH:11]([C:8]1[N:6]2[N:7]=[C:2]([C:28]3[CH:27]=[N:26][N:25]([CH3:24])[CH:29]=3)[CH:3]=[CH:4][C:5]2=[N:10][CH:9]=1)[CH3:12]

참가 물질

4

반응물 2

HCID 27739871-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 581475176-Chloro-3-(1-(6-fluoro-1-methyl-1H-indazol-5-yl)ethyl)imidazo[1,2-b]pyridazine

생성물 1

HCID 57917432(Rac)-3-[1-(6-fluoro-1-methyl-1h-indazol-5-yl)-ethyl]-6-(1-methyl-1h-pyrazol-4-yl)-imidazo[1,2-b]pyridazine

시약·촉매·용매 1

HCID 80711,2-Dimethoxyethane용매

실험 절차

(rac)-6-Chloro-3-[1-(6-fluoro-1-methyl-1H-indazol-5-yl)-ethyl]-imidazo[1,2-b]pyridazine (Stage 278.1), 240 mg, 0.728 mmol) was introduced in a microwave reactor together with 1-methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrazole (227 mg, 1.092 mmol) and DME (5 mL). The mixture was purged with argon for 5 min. Tetrakis-(triphenylphosphine)-palladium (42.1 mg) and 2 M Na2CO3 (1.31 mL) were added and the mixture was flushed with argon before being sealed. The RM was submitted to microwave irradiation at 150° C. 30 min. Then it was diluted with EtOAc and washed with water, brine, dried over Na2SO4, filtered and evaporated. The residue was purified by preparative HPLC with acetonitrile and water (+0.1% TFA) to afford the title compound as a white solid (tR 1.03 min (conditions 2), MH+=376) 1H-NMR in DMSO-d6: 8.29 (s, 1H); 8.05 (d, 1H); 7.93 (s, 1H); 7.67 (s, 1H); 7.58 (d, 1H); 7.53 (d, 1H); 7.46 (d, 1H); 7.23 (d, 1H); 4.92 (q, 1H); 3.94 (s, 3H); 3.88 (s, 3H); 1.76 (d, 3H)).

후처리

  1. customThe mixture was purged with argon for 5 min
  2. additionTetrakis-(triphenylphosphine)-palladium (42.1 mg) and 2 M Na2CO3 (1.31 mL) were added
  3. customthe mixture was flushed with argon
  4. custombefore being sealed
  5. customirradiation at 150° C
  6. custom30 min
  7. additionThen it was diluted with EtOAc
  8. washwashed with water, brine
  9. dry with materialdried over Na2SO4
  10. filtrationfiltered
  11. customevaporated
  12. customThe residue was purified by preparative HPLC with acetonitrile and water (+0.1% TFA)

출처 및 근거

ORD 기록
ord-24ce88310f264044800dd64c5aabcc93
출처 데이터셋
uspto-grants-2014_09
특허 번호
US08822468B2

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