1-Methylpiperazine → 2-[2-(2,4-Difluoro-phenyl)-2H-[1,2,4]triazol-3-yl]-9-[6-(4-methyl-piperazin-1-yl)-pyridin-3-yl]-4,5-dihydro-6-oxa-1-thia-10-aza-benzo[e]azulene

HRID 707996Notes

Reaction equation

HRID 707996 reaction equation
[F:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[N:9]1[C:13]([C:14]2[S:23][C:22]3[C:21]4[N:24]=[C:25]([C:28]5[CH:29]=[N:30][C:31](F)=[CH:32][CH:33]=5)[CH:26]=[CH:27][C:20]=4[O:19][CH2:18][CH2:17][C:16]=3[CH:15]=2)=[N:12][CH:11]=[N:10]1.[CH3:35][N:36]1[CH2:41][CH2:40][NH:39][CH2:38][CH2:37]1.CCN(C(C)C)C(C)C>CN1C(=O)CCC1>[F:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[N:9]1[C:13]([C:14]2[S:23][C:22]3[C:21]4[N:24]=[C:25]([C:28]5[CH:29]=[N:30][C:31]([N:39]6[CH2:40][CH2:41][N:36]([CH3:35])[CH2:37][CH2:38]6)=[CH:32][CH:33]=5)[CH:26]=[CH:27][C:20]=4[O:19][CH2:18][CH2:17][C:16]=3[CH:15]=2)=[N:12][CH:11]=[N:10]1

Participants

5

Reactant 3

HCID 531671-MethylpiperazineHCID 81531DiisopropylethylamineHCID 582040792-[2-(2,4-Difluoro-phenyl)-2H-[1,2,4]triazol-3-yl]-9-(6-fluoro-pyridin-3-yl)-4,5-dihydro-6-oxa-1-thia-10-aza-benzo[e]azulene

Product 1

HCID 582037232-[2-(2,4-Difluoro-phenyl)-2H-[1,2,4]triazol-3-yl]-9-[6-(4-methyl-piperazin-1-yl)-pyridin-3-yl]-4,5-dihydro-6-oxa-1-thia-10-aza-benzo[e]azuleneYield 57%

Reagents, catalysts & solvents 1

HCID 13387N-methyl-2-pyrrolidoneSolvent

Conditions

Temperature
150 °C

Procedure

2-[2-(2,4-Difluoro-phenyl)-2H-[1,2,4]triazol-3-yl]-9-(6-fluoro-pyridin-3-yl)-4,5-dihydro-6-oxa-1-thia-10-aza-benzo[e]azulene (470 mg, 1.0 mmol), 1-Methyl-piperazine (120 mg, 1.2 mmol), DIPEA (340 mg, 3 mmol) and NMP (4 mL) were added in a 10 mL of sealed tube, and the mixture was heated by microwave at 150° C. for 120 min under N2. The reaction mixture was filtered to gather the solution and water was added. The mixture was extracted by DCM (20 mL×3). The combined organic layers were dried over Na2SO4, concentrated in vacuo, and purified by preparative HPLC to give 249 (315 mg, yield: 57%). 1HNMR (DMSO-d6, 400 MHz): δ8.71 (s, 1H), 8.27 (s, 1H), 8.04 (d, J=3.2 Hz, 1H), 7.42 (t, J=2 Hz, 1H), 7.90-7.88 (m, 1H), 7.76-7.78 (m, 2H), 7.46-7.40 (m, 1H), 7.38 (d, J=8.4 Hz, 1H), 7.14 (m, 1H), 6.91 (d, J=8.8 Hz, 1H), 4.26 (s, 2H), 3.50 (s, 3H), 3.10 (s, 2H), 2.38 (s, 4H), 2.18 (s, 3H). ESI-MS: m/z=558 [M+H+]

Workup

  1. filtrationThe reaction mixture was filtered
  2. additionwas added
  3. extractionThe mixture was extracted by DCM (20 mL×3)
  4. dry with materialThe combined organic layers were dried over Na2SO4
  5. concentrationconcentrated in vacuo
  6. custompurified by preparative HPLC

Sources & evidence

ORD record
ord-32ea1345d22345cda94c566e969df8fb
Source dataset
uspto-grants-2015_11
Patent number
US09175009B2

Reaction notes

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