Diisopropylethylamine → tert-butyl(S)-1-((2S,3S)-8-cyano-2-methyl-4-oxo-1-(tetrahydro-2H-pyran-4-carbonyl)-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-3-ylamino)-1-oxopropan-2-yl(methyl)carbamate

HRID 1486092Notes

Reaction equation

HRID 1486092 reaction equation
Cl.[NH2:2][C@@H:3]1[C:9](=[O:10])[NH:8][C:7]2[CH:11]=[CH:12][C:13]([C:15]#[N:16])=[CH:14][C:6]=2[N:5]([C:17]([CH:19]2[CH2:24][CH2:23][O:22][CH2:21][CH2:20]2)=[O:18])[C@H:4]1[CH3:25].[C:26]([N:33]([CH3:39])[C@H:34]([C:36](O)=[O:37])[CH3:35])([O:28][C:29]([CH3:32])([CH3:31])[CH3:30])=[O:27].C(N(CC)C(C)C)(C)C.CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>CN(C=O)C.CCOC(C)=O>[C:15]([C:13]1[CH:12]=[CH:11][C:7]2[NH:8][C:9](=[O:10])[C@@H:3]([NH:2][C:36](=[O:37])[C@@H:34]([N:33]([CH3:39])[C:26](=[O:27])[O:28][C:29]([CH3:30])([CH3:32])[CH3:31])[CH3:35])[C@H:4]([CH3:25])[N:5]([C:17]([CH:19]3[CH2:24][CH2:23][O:22][CH2:21][CH2:20]3)=[O:18])[C:6]=2[CH:14]=1)#[N:16]

Participants

7

Reactant 4

HCID 81531DiisopropylethylamineHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 7009590(2S)-2-(((tert-butoxy)carbonyl)(methyl)amino)propanoic acidHCID 90082569(3S,4S)-3-amino-4-methyl-2-oxo-5-(tetrahydro-2H-pyran-4-carbonyl)-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepine-7-carbonitrile hydrochloride

Product 1

HCID 90089030tert-butyl(S)-1-((2S,3S)-8-cyano-2-methyl-4-oxo-1-(tetrahydro-2H-pyran-4-carbonyl)-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-3-ylamino)-1-oxopropan-2-yl(methyl)carbamateYield 78%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a 0° C. solution of (3S,4S)-3-amino-4-methyl-2-oxo-5-(tetrahydro-2H-pyran-4-carbonyl)-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepine-7-carbonitrile hydrochloride (218 mg, 598 μmol) in DMF (1.99 ml) was added Boc-N-methyl-L-alanine (134 mg, 657 μmol), N,N-diisopropylethylamine (414 μl, 2.39 mmol), and HBTU (249 mg, 657 μmol). The reaction was stirred at rt for 30 min, then diluted with EtOAc, washed with H2O, sat. aq. NaHCO3, and sat. aq. NaCl, dried over Na2SO4, filtered, and concentrated. The crude material was purified by flash chromatography to provide tert-butyl(S)-1-((2S,3S)-8-cyano-2-methyl-4-oxo-1-(tetrahydro-2H-pyran-4-carbonyl)-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-3-ylamino)-1-oxopropan-2-yl(methyl)carbamate (239 mg, 78%) as a white solid. MS m/z 536 (MNa)+.

Workup

  1. washwashed with H2O, sat. aq. NaHCO3, 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-b8d93b17ce5d47a3959a09c08438d16a
Source dataset
uspto-grants-2016_08
Patent number
US09422331B2

Reaction notes

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