Triethylamine → 4-[[2-[(Diethylamino)methyl]-1-piperidinyl]acetyl]-1,3-dimethyl-1,4,9,10-tetrahydropyrrolo[3,2-b][1,5]benzodiazepin-10-one

HRID 465068

Reaction equation

HRID 465068 reaction equation
Cl[CH2:2][C:3]([N:5]1[C:11]2[CH:12]=[CH:13][CH:14]=[CH:15][C:10]=2[NH:9][C:8](=[O:16])[C:7]2[N:17]([CH3:21])[CH:18]=[C:19]([CH3:20])[C:6]1=2)=[O:4].C(N(CC)CC)C.[CH2:29]([N:31]([CH2:34][CH:35]1[CH2:40][CH2:39][CH2:38][CH2:37][NH:36]1)[CH2:32][CH3:33])[CH3:30]>CN(C)C=O>[CH2:29]([N:31]([CH2:34][CH:35]1[CH2:40][CH2:39][CH2:38][CH2:37][N:36]1[CH2:2][C:3]([N:5]1[C:11]2[CH:12]=[CH:13][CH:14]=[CH:15][C:10]=2[NH:9][C:8](=[O:16])[C:7]2[N:17]([CH3:21])[CH:18]=[C:19]([CH3:20])[C:6]1=2)=[O:4])[CH2:32][CH3:33])[CH3:30]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 254287N,N-Diethyl-2-piperidinemethanamineHCID 202615044-Chloroacetyl-1,3-dimethyl-1,4,9,10-tetrahydropyrrolo[3,2-b][1,5]benzodiazepin-10-one

Product 1

HCID 135785884-[[2-[(Diethylamino)methyl]-1-piperidinyl]acetyl]-1,3-dimethyl-1,4,9,10-tetrahydropyrrolo[3,2-b][1,5]benzodiazepin-10-one

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A mixture of 4-(chloroacetyl)-1,3-dimethyl-1,4,9,10-tetrahydropyrrolo[3,2-b][1,5]-benzodiazepin-10-one (2.0 g, 0.0066 mol), dimethylformamide (30 ml), triethylamine (1 ml, 0.0071 mol) and 2-[(diethylamino)methyl]piperidine (1.7 g, 0.01 mol) is heated to 30°-40° C. for two hours with stirring. The solvent is distilled off under water jet vacuum, the residue taken up in water (10 ml), made alkline with potassium carbonate and extracted exhaustively with dichloromethane. The combined methylene chloride extracts are dried over sodium sulfate and concentrated. The crude product thus obtained is purified by chromatography on silica gel using dichloromethane/methanol (9:1 v/v). After recrystallization from ethyl acetate/methanol (95:5) the desired compound (1.4 g) is obtained in the form of colorless crystals, Mp. 176°-178° C.

Workup

  1. temperatureis heated to 30°-40° C. for two hours
  2. distillationThe solvent is distilled off under water jet vacuum
  3. extractionextracted exhaustively with dichloromethane
  4. dry with materialThe combined methylene chloride extracts are dried over sodium sulfate
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-657633666d054e6b84af060207e1a96d
Source dataset
uspto-grants-1985_10
Patent number
US04550107

Linked notes

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