HCID 21201753, compound → 1-(thiophen-3-yl)carbonylmethyl-2-oxo-3-amino-5-pivaloyl-8-methyl-1,3,4,5-tetrahydro-2H-1,5-benzodiazepine

HRID 1979360Notes

Reaction equation

[S:1]1[CH:5]=[CH:4][C:3]([C:6]([CH2:8][N:9]2[C:15]3[CH:16]=[C:17]([CH3:20])[CH:18]=[CH:19][C:14]=3[N:13]([C:21](=[O:26])[C:22]([CH3:25])([CH3:24])[CH3:23])[CH2:12][CH:11]([NH:27]C(OC(C)(C)C)=O)[C:10]2=[O:35])=[O:7])=[CH:2]1>Cl.O1CCOCC1>[S:1]1[CH:5]=[CH:4][C:3]([C:6]([CH2:8][N:9]2[C:15]3[CH:16]=[C:17]([CH3:20])[CH:18]=[CH:19][C:14]=3[N:13]([C:21](=[O:26])[C:22]([CH3:23])([CH3:24])[CH3:25])[CH2:12][CH:11]([NH2:27])[C:10]2=[O:35])=[O:7])=[CH:2]1

Participants

Conditions

Temperature: 57.5 °C

Procedure

1-(Thiophen-3-yl)carbonylmethyl-2-oxo-3-tert-butoxycarbonylamino-5-pivaloyl-8-methyl-1,3,4,5-tetrahydro-2H-1,5-benzodiazepine (0.94 g) was dissolved in 4N HCl-dioxane (10 ml), the solution was stirred for one hour at 55-60° C. The react ion mixture was concentrated under reduced pressure, the residue was neutralized with saturated aqueous sodium bicarbonate, and extracted with methylene chloride. The organic layer was successively washed with water and saturated brine, dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure, to thereby obtain 0.69 g of the titled compound as a brown solid(Yield: 100%).

Workup

concentrationThe react ion mixture was concentrated under reduced pressure
extractionextracted with methylene chloride
washThe organic layer was successively washed with water and saturated brine
dry with materialdried over anhydrous sodium sulfate
customthe solvent was evaporated under reduced pressure

Sources & evidence

ORD record: ord-421bc303a24a45818f0a363f8c758761
Source dataset: uspto-grants-2001_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06239131B1

Reaction notes

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