1-Hydroxybenzotriazole → 1'-{[3,5-Diethoxy-4-(1-methyl-1H-pyrazol-4-yl)phenyl]carbonyl}-6-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)spiro[chroman-2,4'-piperidin]-4-one

HRID 1096893Notes

Reaction equation

HRID 1096893 reaction equation
C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C.Cl.[CH2:23]([O:25][C:26]1[CH:27]=[C:28]([CH:32]=[C:33]([O:41][CH2:42][CH3:43])[C:34]=1[C:35]1[CH:36]=[N:37][N:38]([CH3:40])[CH:39]=1)[C:29]([OH:31])=O)[CH3:24].Cl.[O:45]=[C:46]1[O:50][N:49]=[C:48]([C:51]2[CH:52]=[C:53]3[C:63](=[CH:64][CH:65]=2)[O:62][C:56]2([CH2:61][CH2:60][NH:59][CH2:58][CH2:57]2)[CH2:55][C:54]3=[O:66])[NH:47]1>O.CN(C=O)C.CCN(CC)CC>[CH2:42]([O:41][C:33]1[CH:32]=[C:28]([C:29]([N:59]2[CH2:60][CH2:61][C:56]3([CH2:55][C:54](=[O:66])[C:53]4[C:63](=[CH:64][CH:65]=[C:51]([C:48]5[NH:47][C:46](=[O:45])[O:50][N:49]=5)[CH:52]=4)[O:62]3)[CH2:57][CH2:58]2)=[O:31])[CH:27]=[C:26]([O:25][CH2:23][CH3:24])[C:34]=1[C:35]1[CH:36]=[N:37][N:38]([CH3:40])[CH:39]=1)[CH3:43]

Participants

8

Reactant 4

HCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 579310273,5-diethoxy-4-(1-methyl-1H-pyrazol-4-yl)benzoic acidHCID 1363426496-(5-Oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)spiro[chroman-2,4'-piperidin]-4-one hydrochloride

Product 1

HCID 1359101731'-{[3,5-Diethoxy-4-(1-methyl-1H-pyrazol-4-yl)phenyl]carbonyl}-6-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)spiro[chroman-2,4'-piperidin]-4-one

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 8471TriethylamineSolvent

Procedure

Et3N (58 μL), HOBT (32 mg) and WSC hydrochloride (40 mg) were added to a DMF (4 mL) solution of 3,5-diethoxy-4-(1-methyl-1H-pyrazol-4-yl)benzoic acid (50 mg) and 6-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)spiro[chroman-2,4′-piperidin]-4-one hydrochloride (70 mg), and stirred overnight at room temperature. Water was added to the reaction liquid, the formed solid was taken out through filtration, and the solid was fully washed with water and ether. The solid was dried under reduced pressure to obtain the title compound. 1H-NMR (400 MHz, DMSO-d6) δ: 12.96 (1H, s), 8.21 (1H, d, J=4.0 Hz), 8.06 (1H, s), 8.00 (1H, dd, J=8.0, 4.0 Hz), 7.92 (1H, s), 7.30 (1H, d, J=8.0 Hz), 6.68 (2H, s), 4.32-4.18 (1H, m), 4.08 (4H, q, J=8.0 Hz), 3.86 (3H, s), 3.64-3.20 (3H, m), 2.97 (2H, s), 2.10-1.75 (4H, m), 1.37 (6H, t, J=8.0 Hz). MS [M+H]+=574.

Workup

  1. filtrationthe formed solid was taken out through filtration
  2. washthe solid was fully washed with water and ether
  3. customThe solid was dried under reduced pressure

Sources & evidence

ORD record
ord-6d3e4b5ab4264facbd27f9c56b3f03a0
Source dataset
uspto-grants-2012_03
Patent number
US08138197B2

Reaction notes

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