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Hydrochloric Acid → (2S)-2-tert-butoxy-2-[5-[4-[2-(4-fluorophenyl)ethoxy]phenyl]-4-(4-methoxy-4-methyl-1-piperidyl)-2,6-dimethyl-3-pyridyl]acetic acid

HRID 718469
ノート
印刷プレビュー

反応式

HRID 718469 の反応式
[OH-].[K+].[C:3]([O:7][C@@H:8]([C:15]1[C:16]([CH3:47])=[N:17][C:18]([CH3:46])=[C:19]([C:30]2[CH:35]=[CH:34][C:33]([O:36][CH2:37][CH2:38][C:39]3[CH:44]=[CH:43][C:42]([F:45])=[CH:41][CH:40]=3)=[CH:32][CH:31]=2)[C:20]=1[N:21]1[CH2:26][CH2:25][C:24]([O:28][CH3:29])([CH3:27])[CH2:23][CH2:22]1)[C:9]([O:11]C(C)C)=[O:10])([CH3:6])([CH3:5])[CH3:4].Cl>C(O)C>[C:3]([O:7][C@@H:8]([C:15]1[C:16]([CH3:47])=[N:17][C:18]([CH3:46])=[C:19]([C:30]2[CH:31]=[CH:32][C:33]([O:36][CH2:37][CH2:38][C:39]3[CH:44]=[CH:43][C:42]([F:45])=[CH:41][CH:40]=3)=[CH:34][CH:35]=2)[C:20]=1[N:21]1[CH2:22][CH2:23][C:24]([O:28][CH3:29])([CH3:27])[CH2:25][CH2:26]1)[C:9]([OH:11])=[O:10])([CH3:6])([CH3:5])[CH3:4]
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

5

反応物 3

HCID 313Hydrochloric AcidHCID 14797Potassium HydroxideHCID 118307837(S)-isopropyl 2-(tert-butoxy)-2-(5-(4-(4-fluorophenethoxy)phenyl)-4-(4-methoxy-4-methylpiperidin-1-yl)-2,6-dimethylpyridin-3-yl)acetate

生成物 1

HCID 118307680(2S)-2-tert-butoxy-2-[5-[4-[2-(4-fluorophenyl)ethoxy]phenyl]-4-(4-methoxy-4-methyl-1-piperidyl)-2,6-dimethyl-3-pyridyl]acetic acid収率 21.5%

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒

反応条件

温度
90 °C

実験手順

The potassium hydroxide (230 mg, 4.1 mmol) was added to a gave (S)-isopropyl 2-(tert-butoxy)-2-(5-(4-(4-fluorophenethoxy)phenyl)-4-(4-methoxy-4-methylpiperidin-1-yl)-2,6-dimethylpyridin-3-yl)acetate (255 mg, 0.41 mmol) in ethanol (4 mL) and stirred for 6 h at 90° C. The reaction mixture was neutralized with 1N HCl solution, extracted with EtOAc, and the organic layer was washed with brine, and dried (MgSO4). The crude material was purified by prep to give (S)-2-(tert-butoxy)-2-(5-(4-(4-fluorophenethoxy)phenyl)-4-(4-methoxy-4-methylpiperidin-1-yl)-2,6-dimethylpyridin-3-yl)acetic acid 51 mg (21%) as a mixture of diastereomers. 1H NMR (500 MHz, DMSO-d6) δ 7.39-7.36 (m, 2H), 7.19-7.12 (m, 3H), 7.02-6.99 (m, 3H), 5.81 (s, 1H), 4.24-4.21 (m, 2H), 3.49 (br. s, 4H), 3.07-3.04 (m, 2H), 2.89/2.81 (s, 3H), 2.44 (s, 3H), 2.04 (s, 3H), 1.59-1.45 (m, 3H), 1.32-1.25 (m, 1H), 1.12 (br. s, 9H), 0.99/0.81 (s, 3H). UPLC (M+H)=579.5.

後処理

  1. extractionextracted with EtOAc
  2. washthe organic layer was washed with brine
  3. dry with materialdried (MgSO4)
  4. customThe crude material was purified by prep

出典と根拠

ORDレコード
ord-80cdfc961b8f4c8e8e8ea1515b2e8d96
出典データセット
uspto-grants-2015_11
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09193720B2

反応ノート

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