Cesium carbonate → tert-butyl methyl((S)-1-((2S,3S)-2-methyl-1-(2-(methylsulfonyl)acetyl)-4-oxo-5-(quinolin-4-ylmethyl)-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-3-ylamino)-1-oxopropan-2-yl)carbamate

HRID 1486057Notes

Reaction equation

HRID 1486057 reaction equation
[CH3:1][N:2]([C@@H:10]([CH3:34])[C:11]([NH:13][C@H:14]1[C@H:20]([CH3:21])[N:19]([C:22](=[O:28])[CH2:23][S:24]([CH3:27])(=[O:26])=[O:25])[C:18]2[CH:29]=[CH:30][CH:31]=[CH:32][C:17]=2[NH:16][C:15]1=[O:33])=[O:12])[C:3](=[O:9])[O:4][C:5]([CH3:8])([CH3:7])[CH3:6].Br.Br[CH2:37][C:38]1[C:47]2[C:42](=[CH:43][CH:44]=[CH:45][CH:46]=2)[N:41]=[CH:40][CH:39]=1.C(=O)([O-])[O-].[Cs+].[Cs+]>CN(C=O)C.CCOC(C)=O>[CH3:1][N:2]([C@@H:10]([CH3:34])[C:11]([NH:13][C@H:14]1[C@H:20]([CH3:21])[N:19]([C:22](=[O:28])[CH2:23][S:24]([CH3:27])(=[O:25])=[O:26])[C:18]2[CH:29]=[CH:30][CH:31]=[CH:32][C:17]=2[N:16]([CH2:37][C:38]2[C:47]3[C:42](=[CH:43][CH:44]=[CH:45][CH:46]=3)[N:41]=[CH:40][CH:39]=2)[C:15]1=[O:33])=[O:12])[C:3](=[O:9])[O:4][C:5]([CH3:6])([CH3:7])[CH3:8]

Participants

6

Reactant 3

HCID 10796Cesium carbonateHCID 534079134-(Bromomethyl)quinoline hydrobromideHCID 90082560tert-butyl methyl((S)-1-((2S,3S)-2-methyl-1-(2-(methylsulfonyl)acetyl)-4-oxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-3-ylamino)-1-oxopropan-2-yl)carbamate

Product 1

HCID 90082474tert-butyl methyl((S)-1-((2S,3S)-2-methyl-1-(2-(methylsulfonyl)acetyl)-4-oxo-5-(quinolin-4-ylmethyl)-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-3-ylamino)-1-oxopropan-2-yl)carbamateYield 30.2%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a rt solution of tert-butyl methyl((S)-1-((2S,3S)-2-methyl-1-(2-(methylsulfonyl)acetyl)-4-oxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-3-ylamino)-1-oxopropan-2-yl)carbamate (147 mg, 296 μmol) in DMF (740 μl) was added 4-(bromomethyl)quinoline hydrobromide (135 mg, 444 μmol) and cesium carbonate (289 mg, 888 μmol). The reaction was stirred at rt for 18 h, then diluted with EtOAc, washed with H2O and sat. aq. NaCl, dried over Na2SO4, filtered, and concentrated. The crude material was purified by flash chromatography to provide tert-butyl methyl((S)-1-((2S,3S)-2-methyl-1-(2-(methylsulfonyl)acetyl)-4-oxo-5-(quinolin-4-ylmethyl)-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-3-ylamino)-1-oxopropan-2-yl)carbamate (57 mg, 30%) as a white solid. MS m/z 638 (MH)+.

Workup

  1. washwashed with H2O and sat. aq. NaCl
  2. dry with materialdried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe crude material was purified by flash chromatography

Sources & evidence

ORD record
ord-e3cf5d022d294b31a22f6a8a7a9a0744
Source dataset
uspto-grants-2016_08
Patent number
US09422331B2

Reaction notes

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