Dibutylamine → (S)-8-chloro-1-(5-dibutylaminomethyl-1,2,4-oxadiazol-3-yl)-7-fluoro-12,12a-dihydro-9H,11H-azeto[2,1-c]imidazo[1,5-a][1,4]benzodiazepin-9-one

HRID 1378174Notes

Reaction equation

HRID 1378174 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][C:3]=1[F:26].[CH2:27]([NH:31][CH2:32][CH2:33][CH2:34][CH3:35])[CH2:28][CH2:29][CH3:30]>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:31]([CH2:32][CH2:33][CH2:34][CH3:35])[CH2:27][CH2:28][CH2:29][CH3:30])[O:18][N:17]=3)[C:6]=2[CH:5]=[CH:4][C:3]=1[F:26]

Participants

4

Reactant 2

HCID 8148DibutylamineHCID 54490879(S)-8-chloro-1-(5-chloromethyl-1,2,4-oxadiazol-3-yl)-7-fluoro-12,12a-dihydro-9H,11H-azeto[2,1-c]imidazo[1,5-a][1,4]benzodiazepin-9-one

Product 1

HCID 53974384(S)-8-chloro-1-(5-dibutylaminomethyl-1,2,4-oxadiazol-3-yl)-7-fluoro-12,12a-dihydro-9H,11H-azeto[2,1-c]imidazo[1,5-a][1,4]benzodiazepin-9-oneYield 36.1%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

1 g (2.5 mmol) of (S)-8-chloro-1-(5-chloromethyl-1,2,4-oxadiazol-3-yl)-7-fluoro-12,12a-dihydro-9H,11H-azeto[2,1-c]imidazo[1,5-a][1,4]benzodiazepin-9-one was stirred at room temperature overnight with 0.98 g (7.5 mmol) of dibutylamine and 10 ml of N,N-dimethylformamide. By evaporation of the reaction mixture and chromatography of the residue on silica gel while eluting with ethyl acetate there was obtained 0.44 g (36%) of (S)-8-chloro-1-(5-dibutylaminomethyl-1,2,4-oxadiazol-3-yl)-7-fluoro-12,12a-dihydro-9H,11H-azeto[2,1-c]imidazo[1,5-a][1,4]benzodiazepin-9-one, which was converted into the hydrochloride (amorphous).

Workup

  1. customBy evaporation of the reaction mixture and chromatography of the residue on silica gel
  2. washwhile eluting with ethyl acetate

Sources & evidence

ORD record
ord-2329d13c27b24f44a32eb8b71307824a
Source dataset
uspto-grants-1997_09
Patent number
US05665718

Reaction notes

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