Cesium carbonate → tert-butyl 4-{3-[(3R)-3-{[3-methoxy-1-{5-[3-(2-{[(4-methylphenyl) sulfonyl]oxy}ethoxy)phenyl]pyridin-3-yl}-3-oxopropyl]carbamoyl}piperidin-1-yl]-3-oxopropyl}piperidine-1-carboxylate

HRID 526383ノート

反応式

HRID 526383 の反応式
[OH:1][C:2]1[CH:3]=[C:4]([C:8]2[CH:9]=[C:10]([CH:14]([NH:20][C:21]([C@@H:23]3[CH2:28][CH2:27][CH2:26][N:25]([C:29](=[O:45])[CH2:30][CH2:31][CH:32]4[CH2:37][CH2:36][N:35]([C:38]([O:40][C:41]([CH3:44])([CH3:43])[CH3:42])=[O:39])[CH2:34][CH2:33]4)[CH2:24]3)=[O:22])[CH2:15][C:16]([O:18][CH3:19])=[O:17])[CH:11]=[N:12][CH:13]=2)[CH:5]=[CH:6][CH:7]=1.C(=O)([O-])[O-].[Cs+].[Cs+].[C:52]1([CH3:75])[CH:57]=[CH:56][C:55]([S:58]([O:61][CH2:62][CH2:63]OS(C2C=CC(C)=CC=2)(=O)=O)(=[O:60])=[O:59])=[CH:54][CH:53]=1>CN(C)C=O>[CH3:19][O:18][C:16](=[O:17])[CH2:15][CH:14]([NH:20][C:21]([C@@H:23]1[CH2:28][CH2:27][CH2:26][N:25]([C:29](=[O:45])[CH2:30][CH2:31][CH:32]2[CH2:33][CH2:34][N:35]([C:38]([O:40][C:41]([CH3:42])([CH3:44])[CH3:43])=[O:39])[CH2:36][CH2:37]2)[CH2:24]1)=[O:22])[C:10]1[CH:11]=[N:12][CH:13]=[C:8]([C:4]2[CH:5]=[CH:6][CH:7]=[C:2]([O:1][CH2:63][CH2:62][O:61][S:58]([C:55]3[CH:56]=[CH:57][C:52]([CH3:75])=[CH:53][CH:54]=3)(=[O:60])=[O:59])[CH:3]=2)[CH:9]=1

参加物

5

反応物 3

HCID 10796Cesium carbonateHCID 228289Ethylene glycol ditosylateHCID 71258986tert-butyl 4-{3-[(3R)-3-({1-[5-(3-hydroxyphenyl)pyridin-3-yl]-3-m ethoxy-3-oxopropyl}carbamoyl)piperidin-1-yl]-3-oxopropyl}piperidine-1-carboxylate

生成物 1

HCID 71609665tert-butyl 4-{3-[(3R)-3-{[3-methoxy-1-{5-[3-(2-{[(4-methylphenyl) sulfonyl]oxy}ethoxy)phenyl]pyridin-3-yl}-3-oxopropyl]carbamoyl}piperidin-1-yl]-3-oxopropyl}piperidine-1-carboxylate収率 53.3%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

98.0 mg (0.16 mmol) Tert-butyl 4-{3-[(3R)-3-({1-[5-(3-hydroxyphenyl)pyridin-3-yl]-3-methoxy-3-oxopropyl}carbamoyl)piperidin-1-yl]-3-oxopropyl}piperidine-1-carboxylate (example 6a) were dissolved in 6.1 ml N,N-dimethylformamide. 154 mg (0.47 mmol) cesium carbonate and 87.4 mg (0.24 mmol) ethylene glycol bis-p-toluenesulfonate were added. The mixture was stirred at room temperature for 68 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. Chromatography over 10 g silica gel (dichloromethane/ethanol 100/0-90/10) gave 70 mg (49%) tert-butyl 4-{3-[(3R)-3-{[3-methoxy-1-{5-[3-(2-{[(4-methylphenyl)sulfonyl]oxy}ethoxy)phenyl]pyridin-3-yl}-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

出典と根拠

ORDレコード
ord-39d0c5b2bad945a9ba2235b10ab46bdb
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…