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1-Methylpiperazine → (3RS)-1,3-dihydro-3-(2-indolylcarbonylamino)-1-[2-(4-methyl-1-piperazinyl) ethyl]-5phenyl-2H-1,4-benzodiazepine-2-one

HRID 1769864
Notes
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Reaction equation

HRID 1769864 reaction equation
[NH:1]1[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[CH:3]=[C:2]1[C:10]([NH:12][CH:13]1[N:19]=[C:18]([C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)[C:17]2[CH:26]=[CH:27][CH:28]=[CH:29][C:16]=2[N:15]([CH2:30][CH2:31]Br)[C:14]1=[O:33])=[O:11].[CH3:34][N:35]1[CH2:40][CH2:39][NH:38][CH2:37][CH2:36]1>C(OC(C)C)(C)C>[NH:1]1[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[CH:3]=[C:2]1[C:10]([NH:12][CH:13]1[N:19]=[C:18]([C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)[C:17]2[CH:26]=[CH:27][CH:28]=[CH:29][C:16]=2[N:15]([CH2:30][CH2:31][N:38]2[CH2:39][CH2:40][N:35]([CH3:34])[CH2:36][CH2:37]2)[C:14]1=[O:33])=[O:11]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 2

HCID 531671-MethylpiperazineHCID 20097467(3RS)-1,3-dihydro-3-(2-indolylcarbonylamino)-1-(2-bromoethyl)-5-phenyl-2H-1, 4-benzodiazepine-2-one

Product 1

HCID 14800325(3RS)-1,3-dihydro-3-(2-indolylcarbonylamino)-1-[2-(4-methyl-1-piperazinyl) ethyl]-5phenyl-2H-1,4-benzodiazepine-2-one

Reagents, catalysts & solvents 1

HCID 7914Diisopropyl EtherSolvent

Procedure

A mixture of (3RS)-1,3-dihydro-3-(2-indolylcarbonylamino)-1-(2-bromoethyl )-5-phenyl-2H-1,4-benzodiazepine-2-one (0.3 g) and 1-methylpiperazine (3.0 ml) was stirred for 4.0 hours at room temperature and diisopropyl ether (20 ml) was added thereto. The resultant precipitates were collected by filtration and dissolved in diluted hydrochloric acid. The solution was adjusted to pH 7 with an aqueous solution of sodium bicarbonate and the resultant precipitates were collected by filtration to give (3RS)-1,3-dihydro-3-(2-indolylcarbonylamino)-1-[2-(4-methyl-1-piperazinyl)ethyl ]-5-phenyl-2H-1,4-benzodiazepine-2-one (0.20 g).

Workup

  1. customThe resultant precipitates
  2. filtrationwere collected by filtration
  3. dissolutiondissolved in diluted hydrochloric acid
  4. customthe resultant precipitates
  5. filtrationwere collected by filtration

Sources & evidence

ORD record
ord-d67961754d9b4e55a7b137f6b18fc10a
Source dataset
uspto-grants-1995_01
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US05382664

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes