1-Methylpiperazine → HCID 56834373, compound

HRID 1190510Notes

Reaction equation

HRID 1190510 reaction equation
[CH3:1][N:2]1[CH2:7][CH2:6][NH:5][CH2:4][CH2:3]1.CCN(C(C)C)C(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[Br:41][C:42]1[CH:43]=[CH:44][C:45]2[C:51]3[S:52][C:53]([C:55]([N:57]([C:59]4[CH:60]=[C:61]([CH:65]=[CH:66][C:67]=4[Cl:68])[C:62](O)=[O:63])[CH3:58])=[O:56])=[CH:54][C:50]=3[CH2:49][CH2:48][O:47][C:46]=2[CH:69]=1>C1COCC1.O>[Br:41][C:42]1[CH:43]=[CH:44][C:45]2[C:51]3[S:52][C:53]([C:55]([N:57]([C:59]4[CH:60]=[C:61]([C:62]([N:5]5[CH2:6][CH2:7][N:2]([CH3:1])[CH2:3][CH2:4]5)=[O:63])[CH:65]=[CH:66][C:67]=4[Cl:68])[CH3:58])=[O:56])=[CH:54][C:50]=3[CH2:49][CH2:48][O:47][C:46]=2[CH:69]=1

Participants

7

Reactant 4

HCID 531671-MethylpiperazineHCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 568343723-(8-bromo-N-methyl-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-2-carboxamido)-4-chlorobenzoic acid

Product 1

HCID 56834373HCID 56834373, compoundYield 94.3%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a mixture of 1-methyl-piperazine (1.22 g, 12.18 mmol), DIPEA (3 mL), HATU (2.78 g, 7.31 mmol) in THF (60 mL) was added 3-(8-bromo-N-methyl-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-2-carboxamido)-4-chlorobenzoic acid (3.0 g, 6.09 mmol) under nitrogen atmosphere at room temperature. The reaction mixture was stirred overnight, diluted with water, extracted with EtOAc. The organic layer was dried over Na2SO4, concentrated in vacuo to give 8-bromo-N-(2-chloro-5-(4-methylpiperazine-1-carbonyl)phenyl)-N-methyl-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-2-carboxamide (3.3 g, yield 94%) 1H NMR (DMSO-d6, 400 MHz): δ7.74-7.21 (m, 6H, ArH), 6.67 (s, 1H, ═CH), 4.18 (t, J=4.4 Hz, 2H, CH2), 3.31-2.12 (m, 16H, CH3, CH2)

Workup

  1. extractionextracted with EtOAc
  2. dry with materialThe organic layer was dried over Na2SO4
  3. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-9df4ff87de614d24860a69c1c0203f29
Source dataset
uspto-grants-2014_03
Patent number
US08673952B2

Reaction notes

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