Dipropylamine → (S)-8-chloro-1-(5-dipropylaminomethyl-1,2,4-oxadiazol-3-yl)-11,12,13,13a-tetrahydro-9H-imidazo[1,5-a]pyrrolo[2,1-c][1,4]benzodiazepin-9-one

HRID 1378204Notes

Reaction equation

HRID 1378204 reaction equation
[Cl:1][C:2]1[C:7]2[C:8](=[O:26])[N:9]3[CH2:25][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.[CH2:27]([NH:30][CH2:31][CH2:32][CH3:33])[CH2:28][CH3:29]>CN(C)C=O>[Cl:1][C:2]1[C:7]2[C:8](=[O:26])[N:9]3[CH2:25][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][CH3:33])[CH2:27][CH2:28][CH3:29])[O:18][N:17]=3)[C:6]=2[CH:5]=[CH:4][CH:3]=1

Participants

4

Reactant 2

HCID 8902DipropylamineHCID 54468676(S)-8-chloro-1-(5-chloromethyl-1,2,4-oxadiazol-3-yl)-11,12,13,13a-tetrahydro-9H-imidazo[1,5-a]pyrrolo[2,1-c][1,4]benzodiazepin-9-one

Product 1

HCID 54427205(S)-8-chloro-1-(5-dipropylaminomethyl-1,2,4-oxadiazol-3-yl)-11,12,13,13a-tetrahydro-9H-imidazo[1,5-a]pyrrolo[2,1-c][1,4]benzodiazepin-9-oneYield 94.1%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A suspension of 1.85 g (4.74 mmol) of (S)-8-chloro-1-(5-chloromethyl-1,2,4-oxadiazol-3-yl)-11,12,13,13a-tetrahydro-9H-imidazo[1,5-a]pyrrolo[2,1-c][1,4]benzodiazepin-9-one in 30 ml of N,N-dimethylformamide was treated with 2.40 g (23.7 mmol) of dipropylamine. After stirring at room temperature for 16 hrs. the solution obtained was completely freed from the solvents. The residue was chromatographed over silica gel with methylene chloride/methanol 19:1 as the eluent. There were obtained 2.03 g (94%) of (S)-8-chloro-1-(5-dipropylaminomethyl-1,2,4-oxadiazol-3-yl)-11,12,13,13a-tetrahydro-9H-imidazo[1,5-a]pyrrolo[2,1-c][1,4]benzodiazepin-9-one as a pale yellow oil; [α]D20 =+29.3° (MeOH, c=1%).

Workup

  1. customthe solution obtained
  2. customThe residue was chromatographed over silica gel with methylene chloride/methanol 19:1 as the eluent

Sources & evidence

ORD record
ord-e3033d5ceb4b46a0be25728972b38e57
Source dataset
uspto-grants-1997_09
Patent number
US05665718

Reaction notes

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