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Tert-butyl 4-(2-hydroxyethyl)piperazine-1-carboxylate → tert-Butyl 4-(2-(3-(3-methyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-ylcarbamoyl)imidazo[1,2-a]pyridin-7-yloxy)ethyl)piperazine-1-carboxylate

HRID 706598
ノート
印刷プレビュー

反応式

HRID 706598 の反応式
CC(C)([O-])C.[K+].[OH:7][CH2:8][CH2:9][N:10]1[CH2:15][CH2:14][N:13]([C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:12][CH2:11]1.F[C:24]1[CH:29]=[CH:28][N:27]2[C:30]([C:33]([NH:35][C:36]3[CH:44]=[CH:43][CH:42]=[C:41]4[C:37]=3[C:38]([CH3:53])=[N:39][N:40]4[CH2:45][C:46]3[CH:51]=[CH:50][CH:49]=[C:48]([CH3:52])[N:47]=3)=[O:34])=[CH:31][N:32]=[C:26]2[CH:25]=1>C1COCC1.CN1C(=O)CCC1>[CH3:53][C:38]1[C:37]2[C:41](=[CH:42][CH:43]=[CH:44][C:36]=2[NH:35][C:33]([C:30]2[N:27]3[CH:28]=[CH:29][C:24]([O:7][CH2:8][CH2:9][N:10]4[CH2:15][CH2:14][N:13]([C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:12][CH2:11]4)=[CH:25][C:26]3=[N:32][CH:31]=2)=[O:34])[N:40]([CH2:45][C:46]2[CH:51]=[CH:50][CH:49]=[C:48]([CH3:52])[N:47]=2)[N:39]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 3

HCID 735736Tert-butyl 4-(2-hydroxyethyl)piperazine-1-carboxylateHCID 23665647Potassium tert-butoxideHCID 573866457-fluoro-N-(3-methyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)imidazo[1,2-a]pyridine-3-carboxamide

生成物 1

HCID 57386649tert-Butyl 4-(2-(3-(3-methyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-ylcarbamoyl)imidazo[1,2-a]pyridin-7-yloxy)ethyl)piperazine-1-carboxylate

試薬・触媒・溶媒 2

HCID 8028Tetrahydrofuran溶媒
HCID 13387N-methyl-2-pyrrolidone溶媒

実験手順

To a 0.4 M solution of potassium tert-butoxide (0.068 g, 0.606 mmol) in THF cooled in an ice-water bath was added tert-butyl 4-(2-hydroxyethyl)piperazine-1-carboxylate 0.278 g, 1.21 mmol). The reaction was stirred for 10 minutes before adding 7-fluoro-N-(3-methyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)imidazo[1,2-a]pyridine-3-carboxamide (Example 53; 0.100 g 0.241 mmol) in 2 mL of NMP. The reaction was warmed to ambient temperature and stirred for 1 hour, then heated to 60° C. and stirred for 12 hours. THF was removed by rotary evaporation and the mixture was heated to 120° C. for 5 hours. Another equivalent of potassium t-butoxide was added and the mixture was heated for another 3 hours. The reaction was quenched with water and extracted with EtOAc. The extracts were dried over sodium sulfate and concentrated under reduced pressure. Purification by preparative thin layer chromatography and reverse phase chromatography gave the title compound. MS (APCI), positive scan, m/z=625.0 (M+H).

後処理

  1. stirringstirred for 1 hour
  2. temperatureheated to 60° C.
  3. stirringstirred for 12 hours
  4. customTHF was removed by rotary evaporation
  5. temperaturethe mixture was heated to 120° C. for 5 hours
  6. additionAnother equivalent of potassium t-butoxide was added
  7. temperaturethe mixture was heated for another 3 hours
  8. customThe reaction was quenched with water
  9. extractionextracted with EtOAc
  10. dry with materialThe extracts were dried over sodium sulfate
  11. concentrationconcentrated under reduced pressure
  12. customPurification by preparative thin layer chromatography

出典と根拠

ORDレコード
ord-cda1a7285a8545039e92663c375f9e72
出典データセット
uspto-grants-2015_11
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09174981B2

反応ノート

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