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Sodium triacetoxyborohydride → 4-({4-[2-(1-oxo-1,3-dihydro-2-benzofuran-5-yl)ethyl]piperazin-1-yl}methyl)-3,4-dihydro-2H-chromene-7-carbonitrile

HRID 1519603
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HRID 1519603 반응식
[CH:1]([CH:3]1[C:12]2[C:7](=[CH:8][C:9]([C:13]#[N:14])=[CH:10][CH:11]=2)[O:6][CH2:5][CH2:4]1)=O.[N:15]1([CH2:21][CH2:22][C:23]2[CH:32]=[CH:31][C:26]3[C:27](=[O:30])[O:28][CH2:29][C:25]=3[CH:24]=2)[CH2:20][CH2:19][NH:18][CH2:17][CH2:16]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>ClCCl>[O:30]=[C:27]1[C:26]2[CH:31]=[CH:32][C:23]([CH2:22][CH2:21][N:15]3[CH2:20][CH2:19][N:18]([CH2:1][CH:3]4[C:12]5[C:7](=[CH:8][C:9]([C:13]#[N:14])=[CH:10][CH:11]=5)[O:6][CH2:5][CH2:4]4)[CH2:17][CH2:16]3)=[CH:24][C:25]=2[CH2:29][O:28]1
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참가 물질

5

반응물 3

HCID 5049666Sodium triacetoxyborohydrideHCID 595686715-[2-(piperazin-1-yl)ethyl]-2-benzofuran-1(3H)-oneHCID 772307034-Formyl-3,4-dihydro-2H-chromene-7-carbonitrile

생성물 1

HCID 866944804-({4-[2-(1-oxo-1,3-dihydro-2-benzofuran-5-yl)ethyl]piperazin-1-yl}methyl)-3,4-dihydro-2H-chromene-7-carbonitrile

시약·촉매·용매 1

HCID 6344Dichloromethane
용매

실험 절차

To a 12 mL reaction vial was added 4-formyl-3,4-dihydro-2H-chromene-7-carbonitrile (50 mg, 0.27 mmol), 5-[2-(piperazin-1-yl)ethyl]-2-benzofuran-1(3H)-one (66 mg, 0.27 mmol) and dichloromethane (3 mL). The solution was stirred at RT under N2 for 10 min. To above solution was added sodium tris(acetoxy) borohydride (224 mg, 1.1 mmol). The reaction was stirred at RT for 18 hours under N2, extracted with DCM, washed with brine and water. The organic phase was dried over MgSO4, filtered and purified by flash column chromatography. LC-MS (IE, m/z): 418.1 [M+1]+. 1H NMR (500 MHz, CDCl3, δ in ppm): 7.84 (1H, d, J=7.8 Hz), 7.38 (1H, d, J=7.8 Hz), 7.32 (2H, m), 7.11 (1H, dxd, J=8.0 Hz, J=1.6 Hz), 7.08 (1H, d, J=1.6 Hz), 5.60 (2H, s), 4.4 (2H, m), 3.0 (4H, m), 2.4-2.8 (10H, m), 2.0 (2H, m). (0.092 μM)

후처리

  1. customTo a 12 mL reaction
  2. stirringThe reaction was stirred at RT for 18 hours under N2
  3. extractionextracted with DCM
  4. washwashed with brine and water
  5. dry with materialThe organic phase was dried over MgSO4
  6. filtrationfiltered
  7. custompurified by flash column chromatography

출처 및 근거

ORD 기록
ord-3cd156967d6d46e88a5fa1feebda31e8
출처 데이터셋
uspto-grants-2015_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09073882B2

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