Diisopropylethylamine → tert-butyl 4-(2-((2S,5R)-6-(benzyloxy)-7-oxo-1,6-diaza-bicyclo[3.2.1]octane-2-carbonyl)hydrazinecarbonyl)piperidine-1-carboxylate

HRID 1855174Notes

Reaction equation

HRID 1855174 reaction equation
CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[NH:25]([C:27]([CH:29]1[CH2:34][CH2:33][N:32]([C:35]([O:37][C:38]([CH3:41])([CH3:40])[CH3:39])=[O:36])[CH2:31][CH2:30]1)=[O:28])[NH2:26].[CH2:42]([O:49][N:50]1[C:56](=[O:57])[N:55]2[CH2:58][C@H:51]1[CH2:52][CH2:53][C@H:54]2[C:59](O)=[O:60])[C:43]1[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=1.CCN(C(C)C)C(C)C>C(Cl)Cl>[CH2:42]([O:49][N:50]1[C:56](=[O:57])[N:55]2[CH2:58][C@H:51]1[CH2:52][CH2:53][C@H:54]2[C:59]([NH:26][NH:25][C:27]([CH:29]1[CH2:34][CH2:33][N:32]([C:35]([O:37][C:38]([CH3:41])([CH3:40])[CH3:39])=[O:36])[CH2:31][CH2:30]1)=[O:28])=[O:60])[C:43]1[CH:44]=[CH:45][CH:46]=[CH:47][CH:48]=1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 22713165tert-Butyl 4-(hydrazinecarbonyl)piperidine-1-carboxylateHCID 57389355(2S,5R)-6-(Benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxylic acid

Product 1

HCID 86701015tert-butyl 4-(2-((2S,5R)-6-(benzyloxy)-7-oxo-1,6-diaza-bicyclo[3.2.1]octane-2-carbonyl)hydrazinecarbonyl)piperidine-1-carboxylate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
0 °C

Procedure

HATU (3.3 g, 8.7 mmol) and tert-butyl 4-(hydrazinecarbonyl)piperidine-1-carboxylate (2.29 g, 9.42 mmol) were added to a 0° C. solution of (2S,5R)-6-(benzyloxy)-7-oxo-1,6-diaza-bicyclo[3.2.1]octane-2-carboxylic acid (2 g, 7.25 mmol) in CH2Cl2 (50 mL), followed by the addition of DIPEA (2.8 g, 21.8 mmol). The reaction mixture was stirred at 0° C. for 12 hrs then washed with water and saturated sodium chloride, dried over Na2SO4, and concentrated. The residue was purified by silica gel column chromatography (gradient elution 1%-10% MeOH/CH2Cl2) to give tert-butyl 4-(2-((2S,5R)-6-(benzyloxy)-7-oxo-1,6-diaza-bicyclo[3.2.1]octane-2-carbonyl)hydrazinecarbonyl)piperidine-1-carboxylate as a white solid. (2.2 g, 62%). ESI-MS (EI+, m/z): 502.2 [M+H]+.

Workup

  1. washthen washed with water and saturated sodium chloride
  2. dry with materialdried over Na2SO4
  3. concentrationconcentrated
  4. customThe residue was purified by silica gel column chromatography (gradient elution 1%-10% MeOH/CH2Cl2)

Sources & evidence

ORD record
ord-6f8683e2ed4f496e8ced7b703d67f88c
Source dataset
uspto-grants-2015_02
Patent number
US08962843B2

Reaction notes

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