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Triethylamine → (2S,4S)-tert-butyl 4-(2-([1,2,4]triazolo[4,3-a]pyridin-3-yl)quinolin-8-yloxy)-2-(methoxy(methyl)carbamoyl)piperidine-1-carboxylate

HRID 876425
ノート
印刷プレビュー

反応式

HRID 876425 の反応式
[N:1]1[N:2]=[C:3]([C:10]2[CH:19]=[CH:18][C:17]3[C:12](=[C:13]([O:20][C@H:21]4[CH2:26][CH2:25][N:24]([C:27]([O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[O:28])[C@H:23]([C:34]([OH:36])=O)[CH2:22]4)[CH:14]=[CH:15][CH:16]=3)[N:11]=2)[N:4]2[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=12.[CH3:37]CN=C=NCCCN(C)C.C1C=C[C:51]2[N:56]([OH:57])N=NC=2C=1.C(N(CC)CC)C.Cl.CN(C)O>C(Cl)Cl.CCOC(C)=O>[N:1]1[N:2]=[C:3]([C:10]2[CH:19]=[CH:18][C:17]3[C:12](=[C:13]([O:20][C@H:21]4[CH2:26][CH2:25][N:24]([C:27]([O:29][C:30]([CH3:31])([CH3:33])[CH3:32])=[O:28])[C@H:23]([C:34](=[O:36])[N:56]([O:57][CH3:37])[CH3:51])[CH2:22]4)[CH:14]=[CH:15][CH:16]=3)[N:11]=2)[N:4]2[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=12
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

8

反応物 5

HCID 8471TriethylamineHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 27969N,N-dimethylhydroxylamine hydrochlorideHCID 757711-HydroxybenzotriazoleHCID 67230757(2S,4S)-4-(2-([1,2,4]triazolo[4,3-a]pyridin-3-yl)quinolin-8-yloxy)-1-(tert-butoxycarbonyl)piperidine-2-carboxylic acid

生成物 1

HCID 86654359
(2S,4S)-tert-butyl 4-(2-([1,2,4]triazolo[4,3-a]pyridin-3-yl)quinolin-8-yloxy)-2-(methoxy(methyl)carbamoyl)piperidine-1-carboxylate
収率 70%

試薬・触媒・溶媒 2

HCID 6344Dichloromethane溶媒HCID 8857Ethyl Acetate溶媒

反応条件

温度
0 °C

実験手順

(2S,4S)-4-(2-([1,2,4]triazolo[4,3-a]pyridin-3-yl)quinolin-8-yloxy)-1-(tert-butoxycarbonyl)piperidine-2-carboxylic acid (Example 53; 0.100 g, 0.204 mmol), EDCI (0.0548 g, 0.286 mmol) and HOBT (0.0359 g, 0.266 mmol) were mixed in CH2Cl2 (2.5 mL) and the mixture was cooled to 0° C. Triethylamine (0.0712 mL, 0.511 mmol) was added and the mixture was stirred for 15 minutes. Dimethyl hydroxylamine HCl (0.0299 g, 0.306 mmol) was added, and the mixture was warmed to ambient temperature and stirred for 4.5 hours. The mixture was diluted with EtOAc (20 mL) and washed with 1N KHSO4 (2×10 mL), followed by a saturated aqueous NaHCO3 solution and brine. The organic layer was dried over Na2SO4, filtered and concentrated. The crude material was purified by column chromatography (1 to 5% MeOH/CH2Cl2) to provide 0.076 g (70%) of the product as a white foam.

後処理

  1. temperaturethe mixture was warmed to ambient temperature
  2. stirringstirred for 4.5 hours
  3. washwashed with 1N KHSO4 (2×10 mL)
  4. dry with materialThe organic layer was dried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe crude material was purified by column chromatography (1 to 5% MeOH/CH2Cl2)

出典と根拠

ORDレコード
ord-039a86732c0e43939758145037c56337
出典データセット
uspto-grants-2015_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08987251B2

反応ノート

読み込み中…

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