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

HRID 1519648Notes

Reaction equation

HRID 1519648 reaction equation
[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.[CH3:15][C:16]1[C:24]2[CH2:23][O:22][C:21](=[O:25])[C:20]=2[CH:19]=[CH:18][C:17]=1[CH2:26][CH2:27][N:28]1[CH2:33][CH2:32][NH:31][CH2:30][CH2:29]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].CCN(C(C)C)C(C)C>C(Cl)Cl>[CH3:15][C:16]1[C:24]2[CH2:23][O:22][C:21](=[O:25])[C:20]=2[CH:19]=[CH:18][C:17]=1[CH2:26][CH2:27][N:28]1[CH2:33][CH2:32][N:31]([CH2:1][CH:3]2[C:12]3[C:7](=[CH:8][C:9]([C:13]#[N:14])=[CH:10][CH:11]=3)[O:6][CH2:5][CH2:4]2)[CH2:30][CH2:29]1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 5049666Sodium triacetoxyborohydrideHCID 595686884-methyl-5-(2-piperazin-1-ylethyl)-2-benzofuran-1(3H)-oneHCID 772307034-Formyl-3,4-dihydro-2H-chromene-7-carbonitrile

Product 1

HCID 680714464-({4-[2-(4-Methyl-1-oxo-1,3-dihydro-2-benzofuran-5-yl)ethyl]piperazin-1-yl}methyl)-3,4-dihydro-2H-chromene-7-carbonitrile

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a solution of 4-formyl-3,4-dihydro-2H-chromene-7-carbonitrile (50 mg, 0.27 mmol) in DCM (3 mL) was added 4-methyl-5-[2-(piperazine-1-yl)ethyl]-2-benzofuran-1(3H)-one (57 mg, 0.27 mmol), sodium triacetoxyborohydride (27.0 mg, 0.267 mmol) and DIPEA (57 mg, 0.27 mmol). The reaction was stirred under nitrogen at room temperature for 16 hours when LC-MS indicated product formation. The mixture was diluted with DCM and the product was isolated by flash chromatography. LC-MS (IE, m/z): 432 [M+1]+. (0.18 μM)

Workup

  1. customthe product was isolated by flash chromatography

Sources & evidence

ORD record
ord-e6e51629f4e744359081e60d8e551e8f
Source dataset
uspto-grants-2015_07
Patent number
US09073882B2

Reaction notes

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