Lithium Chloride → 6-(1-Methyl-1H-imidazol-5-yl)-3-(4-piperidin-1-ylmethylphenyl)-9H-dipyrido[2,3-b;4',3'-d]pyrrole

HRID 1888597노트

반응식

HRID 1888597 반응식
Br[C:2]1[N:10]=[CH:9][C:8]2[NH:7][C:6]3[N:11]=[CH:12][C:13]([C:15]4[CH:20]=[CH:19][C:18]([CH2:21][N:22]5[CH2:27][CH2:26][CH2:25][CH2:24][CH2:23]5)=[CH:17][CH:16]=4)=[CH:14][C:5]=3[C:4]=2[CH:3]=1.[CH3:28][N:29]1[C:33]([Sn](CCCC)(CCCC)CCCC)=[CH:32][N:31]=[CH:30]1.[Cl-].[Li+]>O1CCOCC1.C(Cl)Cl.CO.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH3:28][N:29]1[C:33]([C:2]2[N:10]=[CH:9][C:8]3[NH:7][C:6]4[N:11]=[CH:12][C:13]([C:15]5[CH:16]=[CH:17][C:18]([CH2:21][N:22]6[CH2:23][CH2:24][CH2:25][CH2:26][CH2:27]6)=[CH:19][CH:20]=5)=[CH:14][C:5]=4[C:4]=3[CH:3]=2)=[CH:32][N:31]=[CH:30]1

참가 물질

8

반응물 3

HCID 433294Lithium ChlorideHCID 109156511-Methyl-5-(tri-n-butylstannyl)imidazoleHCID 582663876-Bromo-3-(4-piperidin-1-ylmethyl-phenyl)-9H-dipyrido[2,3-b;4',3'-d]pyrrole

생성물 1

HCID 445455516-(1-Methyl-1H-imidazol-5-yl)-3-(4-piperidin-1-ylmethylphenyl)-9H-dipyrido[2,3-b;4',3'-d]pyrrole수율 20%

시약·촉매·용매 4

HCID 178418397HCID 178418397, 화합물촉매HCID 887Methanol용매HCID 6344Dichloromethane용매HCID 312751,4-Dioxane용매

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온도
100 °C

실험 절차

A mixture of 6-bromo-3-(4-piperidin-1-ylmethyl-phenyl)-9H-dipyrido[2,3-b;4′,3′-d]pyrrole (100 mg, 0.16 mmol), 1-methyl-5-(tributylstannyl)-1H-imidazole (120 mg, 0.32 mmol), tetrakis(triphenylphosphine)palladium(0) (18 mg, 0.016 mmol) and lithium chloride (68 mg, 1.6 mmol) in 1,4-dioxane (3 mL) was degassed and flushed with nitrogen and the reaction heated at 100° C. for 16 h. The cooled reaction mixture was diluted with DCM (20 mL) and methanol (2 mL) and washed with water (15 mL). The organic phase was separated, dried over sodium sulfate, filtered and evaporated in vacuo to afford a residue that was purified by flash chromotagraphy (silica, 10 g column, Biotage, 0-10% methanol in (DCM containing 1% 7M ammonia in methanol)) to afford a residue that was purified by preparative HPLC [20-60% MeCN in water (0.1% ammonium hydroxide) over 30 min, 35 mL/min] to afford the title compound as a pale orange solid (13 mg, 20%). 1H NMR (DMSO-D6, 400 MHz): 12.26 (s, 1H), 9.04 (d, J=2.2 Hz, 1H), 8.95 (d, J=0.9 Hz, 1H), 8.92 (d, J=2.2 Hz, 1H), 8.58 (d, J=0.9 Hz, 1H), 7.77 (d, J=8.2 Hz, 2H), 7.72 (s, 1H), 7.44 (d, J=8.1 Hz, 2H), 7.39 (d, J=1.0 Hz, 1H), 3.96 (s, 3H), 3.49 (s, 2H), 2.36 (s, 4H), 1.57-1.47 (m, 4H), 1.40 (m, 2H). LCMS (Method D): KT=6.54 min, M+H+=423.

후처리

  1. customwas degassed
  2. customflushed with nitrogen
  3. customThe cooled reaction mixture
  4. washwashed with water (15 mL)
  5. customThe organic phase was separated
  6. dry with materialdried over sodium sulfate
  7. filtrationfiltered
  8. customevaporated in vacuo
  9. customto afford a residue that
  10. customwas purified by flash chromotagraphy (silica, 10 g column, Biotage, 0-10% methanol in (DCM containing 1% 7M ammonia in methanol))
  11. customto afford a residue that
  12. customwas purified by preparative HPLC [20-60% MeCN in water (0.1% ammonium hydroxide) over 30 min, 35 mL/min]

출처 및 근거

ORD 기록
ord-0216f1696fb24dafaa1eef4b2349df82
출처 데이터셋
uspto-grants-2013_08
특허 번호
US08501765B2

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