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Trifluoroacetic acid → (S)-1-[2-(4,4-dimethylcyclohexyl)-4-(3-methoxypiperidin-1-yl)phenyl]piperazine

HRID 2218809
ノート
印刷プレビュー

反応式

HRID 2218809 の反応式
C(OC([N:8]1[CH2:13][CH2:12][N:11]([C:14]2[CH:19]=[CH:18][C:17]([N:20]3[CH2:25][CH2:24][CH2:23][C@H:22]([O:26][CH3:27])[CH2:21]3)=[CH:16][C:15]=2[CH:28]2[CH2:33][CH2:32][C:31]([CH2:36]C)([CH2:34]C)[CH2:30][CH2:29]2)[CH2:10][CH2:9]1)=O)(C)(C)C.FC(F)(F)C(O)=O.C(=O)([O-])[O-].[K+].[K+]>ClCCl.O>[CH3:34][C:31]1([CH3:36])[CH2:30][CH2:29][CH:28]([C:15]2[CH:16]=[C:17]([N:20]3[CH2:25][CH2:24][CH2:23][C@H:22]([O:26][CH3:27])[CH2:21]3)[CH:18]=[CH:19][C:14]=2[N:11]2[CH2:10][CH2:9][NH:8][CH2:13][CH2:12]2)[CH2:33][CH2:32]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 6422Trifluoroacetic acidHCID 11430Potassium CarbonateHCID 59769434(S)-4-[2-(4,4-Diethylcyclohexyl)-4-(3-methoxypiperidin-1-yl)phenyl]piperazine-1-carboxylic acid t-butyl ester

生成物 1

HCID 69279865(S)-1-[2-(4,4-dimethylcyclohexyl)-4-(3-methoxypiperidin-1-yl)phenyl]piperazine

試薬・触媒・溶媒 2

HCID 962Water触媒
HCID 6344
Dichloromethane
溶媒

実験手順

(S)-4-[2-(4,4-Diethylcyclohexyl)-4-(3-methoxypiperidin-1-yl)phenyl]piperazine-1-carboxylic acid t-butyl ester (59 mg, 0.1148 mmol) produced in Example (50b) was dissolved in a mixed solvent of dichloromethane (0.7 mL)-water (1 drop). Trifluoroacetic acid (0.177 mL, 2.296 mmol) was added thereto followed by stirring for 15 hours and 20 minutes under the same conditions. Aqueous solution of potassium carbonate was added to the reaction mixture to make the mixture basic. The mixture was then extracted with ethyl acetate. The separated organic layer was concentrated under reduced pressure to give a crude product of (S)-1-[2-(4,4-dimethylcyclohexyl)-4-(3-methoxypiperidin-1-yl)phenyl]piperazine as a brown oil. This was directly used without purification for the following reaction.

後処理

  1. extractionThe mixture was then extracted with ethyl acetate
  2. concentrationThe separated organic layer was concentrated under reduced pressure

出典と根拠

ORDレコード
ord-72955be5cff14482850358c78d39875e
出典データセット
uspto-grants-2008_08
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07410971B2

反応ノート

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