1-Methylpiperazine → HCID 56834373, compound

HRID 2385832Notes

Reaction equation

HRID 2385832 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-6c034e1ea91f4b92b672420e64b3772a
Source dataset
uspto-grants-2012_09
Patent number
US08263633B2

Reaction notes

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