Acetyl chloride → Azd 3514

HRID 2381091ノート

反応式

HRID 2381091 の反応式
[C:1](Cl)(=[O:3])[CH3:2].[N:5]1([CH2:11][CH2:12][O:13][C:14]2[CH:19]=[CH:18][C:17]([CH:20]3[CH2:25][CH2:24][N:23]([C:26]4[CH2:27][CH2:28][C:29]5[N:30]([C:32]([C:35]([F:38])([F:37])[F:36])=[N:33][N:34]=5)[N:31]=4)[CH2:22][CH2:21]3)=[CH:16][CH:15]=2)[CH2:10][CH2:9][NH:8][CH2:7][CH2:6]1.C(N(CC)CC)C>C(Cl)Cl.O>[C:1]([N:8]1[CH2:9][CH2:10][N:5]([CH2:11][CH2:12][O:13][C:14]2[CH:19]=[CH:18][C:17]([CH:20]3[CH2:25][CH2:24][N:23]([C:26]4[CH2:27][CH2:28][C:29]5[N:30]([C:32]([C:35]([F:38])([F:36])[F:37])=[N:33][N:34]=5)[N:31]=4)[CH2:22][CH2:21]3)=[CH:16][CH:15]=2)[CH2:6][CH2:7]1)(=[O:3])[CH3:2]

参加物

6

反応物 3

HCID 6367Acetyl chlorideHCID 8471TriethylamineHCID 685030846-[4-[4-[2-(Piperazin-1-yl)ethoxy]phenyl]piperidin-1-yl]-3-(trifluoromethyl)-7,8-dihydro-[1,2,4]triazolo[4,3-b]pyridazine

生成物 1

HCID 46893585Azd 3514収率 49.7%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6344Dichloromethane溶媒2 回

反応条件

温度
0 °C

実験手順

A solution of acetyl chloride (0.027 mL, 0.38 mmol) in DCM (0.5 mL) was added dropwise to 6-[4-[4-[2-(piperazin-1-yl)ethoxy]phenyl]piperidin-1-yl]-3-(trifluoromethyl)-7,8-dihydro-[1,2,4]triazolo[4,3-b]pyridazine (150 mg, 0.31 mmol) and triethylamine (0.088 mL, 0.63 mmol) in DCM (1 mL) cooled to 0° C. under nitrogen. The resulting solution was stirred at 0° C. for 5 minutes then allowed to warm to room temperature and stirred for 15 minutes. The reaction mixture was diluted with water (2 mL), passed through a phase separating cartridge and then the organic layer was evaporated to afford crude product. The crude product was purified by preparative HPLC (Waters XBridge Prep C18 OBD column, 5μ silica, 19 mm diameter, 100 mm length), using decreasingly polar mixtures of is water (containing 1% ammonia) and MeCN as eluents. Fractions containing the desired compound were evaporated to dryness to give 6-(4-{4-[2-(4-acetylpiperazin-1-yl)ethoxy]phenyl}piperidin-1-yl)-3-(trifluoromethyl)-7,8-dihydro[1,2,4]triazolo[4,3-b]pyridazine (80 mg, 49%) as a gum.

後処理

  1. temperatureto warm to room temperature
  2. stirringstirred for 15 minutes
  3. customseparating cartridge
  4. customthe organic layer was evaporated
  5. customto afford crude product
  6. customThe crude product was purified by preparative HPLC (Waters XBridge Prep C18 OBD column, 5μ silica, 19 mm diameter, 100 mm length)
  7. additionFractions containing the desired compound
  8. customwere evaporated to dryness

出典と根拠

ORDレコード
ord-b6ad2b36d46646f380a65c3b54e304da
出典データセット
uspto-grants-2012_09
特許番号
US08258140B2

反応ノート

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