Diisopropylethylamine → 2-(4-Chloro-5-methyl-3-oxazol-2-yl-pyrazol-1-yl)-1-[4-(4-fluoro-benzyl)-4-hydroxy-piperidin-1-yl]-ethanone

HRID 2103416노트

반응식

HRID 2103416 반응식
[F:1][C:2]1[CH:15]=[CH:14][C:5]([CH2:6][C:7]2([OH:13])[CH2:12][CH2:11][NH:10][CH2:9][CH2:8]2)=[CH:4][CH:3]=1.[Cl:16][C:17]1[C:18]([C:27]2[O:28][CH:29]=[CH:30][N:31]=2)=[N:19][N:20]([CH2:23][C:24](O)=[O:25])[C:21]=1[CH3:22].F[P-](F)(F)(F)(F)F.N1([PH+](N2CCCC2)N2CCCC2)CCCC1.CCN(C(C)C)C(C)C>CC(N(C)C)=O.CCOC(C)=O>[Cl:16][C:17]1[C:18]([C:27]2[O:28][CH:29]=[CH:30][N:31]=2)=[N:19][N:20]([CH2:23][C:24]([N:10]2[CH2:9][CH2:8][C:7]([CH2:6][C:5]3[CH:4]=[CH:3][C:2]([F:1])=[CH:15][CH:14]=3)([OH:13])[CH2:12][CH2:11]2)=[O:25])[C:21]=1[CH3:22]

참가 물질

7

반응물 4

HCID 81531DiisopropylethylamineHCID 104886244-[(4-Fluorophenyl)methyl]piperidin-4-olHCID 22226026Tripyrrolidinophosphonium hexafluorophosphateHCID 59813981(4-Chloro-5-methyl-3-oxazol-2-yl-pyrazol-1-yl)-acetic acid

생성물 1

HCID 160485492-(4-Chloro-5-methyl-3-oxazol-2-yl-pyrazol-1-yl)-1-[4-(4-fluoro-benzyl)-4-hydroxy-piperidin-1-yl]-ethanone수율 30.2%

시약·촉매·용매 2

HCID 8857Ethyl Acetate용매HCID 31374Dimethylacetamide용매

실험 절차

To a 20 mL vial equipped with a magnetic stirring bar was added 63 mg of 4-(4-Fluoro-benzyl)-piperidin-4-ol (0.3 mmol, 1.2 equiv.), 62 mg of (4-Chloro-5-methyl-3-oxazol-2-yl-pyrazol-1-yl)-acetic acid (0.26 mmol, 1.0 equiv), and 138 mg of benzotriazol-1-yloxy)tripyrrolidinophosphonium hexafluorophosphate (0.27 mmol, 1.0 equiv). The reagents were dissolved in 0.6 mL of DMA and to the resultant solution was added 0.18 mL of DIPEA (1.0 mmol, 3.8 equiv.). The reaction solution was stirred for 14 h and then poured into 50 mL of EtOAc. The organic extracts were washed with saturated aq. NaCl (5×10 mL), 1% aq NaOH (1×10 mL), and 0.1 N HCl (1×10 mL). The organic extracts were dried over MgSO4 and concentrated in vacuo to afford a yellow oil, which was purified by preparative HPLC to afford 34 mg of 2-(4-Chloro-5-methyl-3-oxazol-2-yl-pyrazol-1-yl)-1-[4-(4-fluoro-benzyl)-4-hydroxy-piperidin-1-yl]-ethanone (30% yield): MS (ES) M+H expected=413.2, found 413.2. 1H NMR (CDCl3, 400 MHz, 23° C.) δ 7.69 (s, 1H), 7.27 (s, 1H), 7.11-7.14 (m, 2H), 6.98-7.03 (m, 2H), 5.06 (d, J=16.0 Hz, 1H), 4.93 (d, J=16.0 Hz, 1H), 4.32-4.35 (m, 1H), 3.66-3.69 (m, 1H), 3.43-3.50 (m, 1H), 2.96-3.03 (m, 1H), 2.74 (s, 2H), 2.30 (s, 3H), 1.55-1.63 (m, 4H).

후처리

  1. customTo a 20 mL vial equipped with a magnetic stirring bar
  2. washThe organic extracts were washed with saturated aq. NaCl (5×10 mL), 1% aq NaOH (1×10 mL), and 0.1 N HCl (1×10 mL)
  3. dry with materialThe organic extracts were dried over MgSO4
  4. concentrationconcentrated in vacuo
  5. customto afford a yellow oil, which
  6. customwas purified by preparative HPLC

출처 및 근거

ORD 기록
ord-56dcdd05995a4b0c86d76672d40ede54
출처 데이터셋
uspto-grants-2009_08
특허 번호
US07576106B2

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