Diisopropylethylamine → 6-[4-[4-[3-(4-Acetylpiperazin-1-yl)propoxy]phenyl]piperidin-1-yl]-3-(trifluoromethyl)[1,2,4]triazolo[4,3-b]pyridazine

HRID 2381090

反応式

HRID 2381090 の反応式
CCN(C(C)C)C(C)C.Cl[C:11]1[CH:12]=[CH:13][C:14]2[N:15]([C:17]([C:20]([F:23])([F:22])[F:21])=[N:18][N:19]=2)[N:16]=1.[C:24]([N:27]1[CH2:32][CH2:31][N:30]([CH2:33][CH2:34][CH2:35][O:36][C:37]2[CH:42]=[CH:41][C:40]([CH:43]3[CH2:48][CH2:47][NH:46][CH2:45][CH2:44]3)=[CH:39][CH:38]=2)[CH2:29][CH2:28]1)(=[O:26])[CH3:25]>CN(C=O)C>[C:24]([N:27]1[CH2:32][CH2:31][N:30]([CH2:33][CH2:34][CH2:35][O:36][C:37]2[CH:38]=[CH:39][C:40]([CH:43]3[CH2:48][CH2:47][N:46]([C:11]4[CH:12]=[CH:13][C:14]5[N:15]([C:17]([C:20]([F:23])([F:22])[F:21])=[N:18][N:19]=5)[N:16]=4)[CH2:45][CH2:44]3)=[CH:41][CH:42]=2)[CH2:29][CH2:28]1)(=[O:26])[CH3:25]

参加物

5

反応物 3

HCID 81531DiisopropylethylamineHCID 6136576-Chloro-3-(trifluoromethyl)-(1,2,4)triazolo(4,3-b)pyridazineHCID 685041394-[4-[3-(4-Acetylpiperazin-1-yl)propoxy]phenyl]piperidine

生成物 1

HCID 591496936-[4-[4-[3-(4-Acetylpiperazin-1-yl)propoxy]phenyl]piperidin-1-yl]-3-(trifluoromethyl)[1,2,4]triazolo[4,3-b]pyridazine収率 95.4%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

反応条件

温度
80 °C

実験手順

DIPEA (5.21 mL, 29.93 mmol) was added to 6-chloro-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazine (obtained as described in Monatsh. Chem. 1972, 103, 1591) (6.06 g, 27.21 mmol) and 4-[4-[3-(4-acetylpiperazin-1-yl)propoxy]phenyl]piperidine (9.40 g, 27.21 mmol) in DMF (200 mL). The resulting solution was stirred at 80° C. for 1 hour. The reaction mixture was cooled to room temperature then evaporated to dryness. Water (600 mL) was then added and the mixture extracted with DCM (2×600 mL). The combined organic layers were dried (Na2SO4), filtered and concentrated under reduced pressure. The crude product was purified by flash silica chromatography, elution gradient 0 to 10% MeOH in DCM. Pure fractions were evaporated to dryness to afford 6-[4-[4-[3-(4-acetylpiperazin-1-yl)propoxy]phenyl]piperidin-1-yl]-3-(trifluoromethyl)[1,2,4]triazolo[4,3-b]pyridazine (13.80 g, 95%) as an orange solid.

後処理

  1. temperatureThe reaction mixture was cooled to room temperature
  2. customthen evaporated to dryness
  3. additionWater (600 mL) was then added
  4. extractionthe mixture extracted with DCM (2×600 mL)
  5. dry with materialThe combined organic layers were dried (Na2SO4)
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure
  8. customThe crude product was purified by flash silica chromatography, elution gradient 0 to 10% MeOH in DCM
  9. customPure fractions were evaporated to dryness

出典と根拠

ORDレコード
ord-63517275c6a94442bc0cdb76092be245
出典データセット
uspto-grants-2012_09
特許番号
US08258140B2

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