Cesium carbonate → tert-butyl 4-{3-[(3R)-3-({3-methoxy-1-[4-(2-{[(4-methylphenyl)sulfonyl]oxy}ethoxy)phenyl]-3-oxopropyl}carbamoyl)piperidin-1-yl]-3-oxopropyl}piperidine-1-carboxylate

HRID 526367ノート

反応式

HRID 526367 の反応式
[OH:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]([NH:14][C:15]([C@@H:17]2[CH2:22][CH2:21][CH2:20][N:19]([C:23](=[O:39])[CH2:24][CH2:25][CH:26]3[CH2:31][CH2:30][N:29]([C:32]([O:34][C:35]([CH3:38])([CH3:37])[CH3:36])=[O:33])[CH2:28][CH2:27]3)[CH2:18]2)=[O:16])[CH2:9][C:10]([O:12][CH3:13])=[O:11])=[CH:4][CH:3]=1.C(=O)([O-])[O-].[Cs+].[Cs+].[C:46]1([CH3:69])[CH:51]=[CH:50][C:49]([S:52]([O:55][CH2:56][CH2:57]OS(C2C=CC(C)=CC=2)(=O)=O)(=[O:54])=[O:53])=[CH:48][CH:47]=1>CN(C)C=O>[CH3:13][O:12][C:10](=[O:11])[CH2:9][CH:8]([NH:14][C:15]([C@@H:17]1[CH2:22][CH2:21][CH2:20][N:19]([C:23](=[O:39])[CH2:24][CH2:25][CH:26]2[CH2:31][CH2:30][N:29]([C:32]([O:34][C:35]([CH3:36])([CH3:38])[CH3:37])=[O:33])[CH2:28][CH2:27]2)[CH2:18]1)=[O:16])[C:5]1[CH:6]=[CH:7][C:2]([O:1][CH2:57][CH2:56][O:55][S:52]([C:49]2[CH:50]=[CH:51][C:46]([CH3:69])=[CH:47][CH:48]=2)(=[O:54])=[O:53])=[CH:3][CH:4]=1

参加物

5

反応物 3

HCID 10796Cesium carbonateHCID 228289Ethylene glycol ditosylateHCID 712590204-(3-{(R)-3-[1-(4-hydroxy-phenyl)-2-methoxycarbonyl-ethylcarbamoyl]-piperidin-1-yl}-3-oxo-propyl)-piperidine-1-carboxylic acid tert-butyl ester

生成物 1

HCID 71609593tert-butyl 4-{3-[(3R)-3-({3-methoxy-1-[4-(2-{[(4-methylphenyl)sulfonyl]oxy}ethoxy)phenyl]-3-oxopropyl}carbamoyl)piperidin-1-yl]-3-oxopropyl}piperidine-1-carboxylate収率 70.9%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

100 mg (0.18 mmol) Tert-butyl 4-[3-((3R)-3-{[1-(4-hydroxyphenyl)-3-methoxy-3-oxopropyl]carbamoyl}piperidin-1-yl)-3-oxopropyl]piperidine-1-carboxylate (example 2b) were dissolved in 7 ml N,N-dimethylformamide. 179 mg (0.55 mmol) cesium carbonate and 102 mg (0.28 mmol) ethylene glycol bis-p-toluenesulfonate were added. The mixture was stirred at room temperature for 48 hours and concentrated. The remainder was taken up with saturated ammonium chloride solution and ethyl acetate. The aqueous phase was extracted with 3×20 ml ethyl acetate. The extracts were dried over sodium sulfate and concentrated to yield 195 mg. Chromatography over 5 g silica gel (dichloromethane/ethanol 100/0-95/5) gave 95 mg (63%) tert-butyl 4-{3-[(3R)-3-({3-methoxy-1-[4-(2-{[(4-methylphenyl)sulfonyl]oxy}ethoxy)phenyl]-3-oxopropyl}carbamoyl)piperidin-1-yl]-3-oxopropyl}piperidine-1-carboxylate.

後処理

  1. concentrationconcentrated
  2. extractionThe aqueous phase was extracted with 3×20 ml ethyl acetate
  3. dry with materialThe extracts were dried over sodium sulfate
  4. concentrationconcentrated
  5. customto yield 195 mg

出典と根拠

ORDレコード
ord-22ff091cab974ad69df8f0caf11297b2
出典データセット
uspto-grants-2016_05
特許番号
US09345793B2

反応ノート

読み込み中…