Bis(2-Methoxyethyl)amine → (S)-8-chloro-1-[5-di(2-methoxyethyl)aminomethyl-1,2,4-oxadiazol-3-yl]-12,12a-dihydro-9H,11H-azeto[2,1-c]imidazo[1,5-a][1,4]benzodiazepin-9-one

HRID 1378183Notes

Reaction equation

HRID 1378183 reaction equation
[Cl:1][C:2]1[C:7]2[C:8](=[O:25])[N:9]3[CH2:24][CH2:23][C@H:10]3[C:11]3[N:12]([CH:13]=[N:14][C:15]=3[C:16]3[N:20]=[C:19]([CH2:21]Cl)[O:18][N:17]=3)[C:6]=2[CH:5]=[CH:4][CH:3]=1.[CH3:26][O:27][CH2:28][CH2:29][NH:30][CH2:31][CH2:32][O:33][CH3:34]>CN(C)C=O>[Cl:1][C:2]1[C:7]2[C:8](=[O:25])[N:9]3[CH2:24][CH2:23][C@H:10]3[C:11]3[N:12]([CH:13]=[N:14][C:15]=3[C:16]3[N:20]=[C:19]([CH2:21][N:30]([CH2:31][CH2:32][O:33][CH3:34])[CH2:29][CH2:28][O:27][CH3:26])[O:18][N:17]=3)[C:6]=2[CH:5]=[CH:4][CH:3]=1

Participants

4

Reactant 2

HCID 2383Bis(2-Methoxyethyl)amineHCID 53954665(S)-8-chloro-1-(5-chloromethyl-1,2,4-oxadiazol-3-yl)-12,12a-dihydro-9H,11H-azeto[2,1-c]-imidazo[1,5-a][1,4]benzodiazepin-9-one

Product 1

HCID 53839106(S)-8-chloro-1-[5-di(2-methoxyethyl)aminomethyl-1,2,4-oxadiazol-3-yl]-12,12a-dihydro-9H,11H-azeto[2,1-c]imidazo[1,5-a][1,4]benzodiazepin-9-oneYield 211.5%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

1.88 g (5 mmol) of (S)-8-chloro-1-(5-chloromethyl-1,2,4-oxadiazol-3-yl)-12,12a-dihydro-9H,11H-azeto[2,1-c]imidazo[1,5-a][1,4]benzodiazepin-9-one were stirred at room temperature for 4 hours with 2 g (2.2 mmol) of bis(2-methoxyethyl)-amine and 15 ml of N,N-dimethylformamide. After evaporating the solvent the reaction mixture was taken up in 4N sodium hydroxide solution, whereupon the mixture was extracted three times with methylene chloride. By drying the organic phase over magnesium sulfate and evaporating the solvent there were obtained 2.2 g (93%) of (S)-8-chloro-1-[5-di(2-methoxyethyl)aminomethyl-1,2,4-oxadiazol-3-yl]-12,12a-dihydro-9H,11H-azeto[2,1-c]imidazo[1,5-a][1,4]benzodiazepin-9-one, which was converted into the hydrochloride of m.p. 188°-190°.

Workup

  1. customAfter evaporating the solvent the reaction mixture
  2. extractionwas extracted three times with methylene chloride
  3. dry with materialBy drying the organic phase over magnesium sulfate
  4. customevaporating the solvent there

Sources & evidence

ORD record
ord-5ebc305f18d34007ab73dfc35534bf60
Source dataset
uspto-grants-1997_09
Patent number
US05665718

Reaction notes

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