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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 870834
Notes
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Reaction equation

HRID 870834 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
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

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 86701015
tert-butyl 4-(2-((2S,5R)-6-(benzyloxy)-7-oxo-1,6-diaza-bicyclo[3.2.1]octane-2-carbonyl)hydrazinecarbonyl)piperidine-1-carboxylate
Yield 62%

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 solution of (2S,5R)-6-(benzyloxy)-7-oxo-1,6-diaza-bicyclo[3.2.1]octane-2-carboxylic acid (2.0 g, 7.25 mmol) in CH2Cl2 (50 mL) at 0° C. DIPEA (2.8 g, 21.8 mmol) was then added and the reaction mixture was stirred at 0° C. for 12 hrs. The reaction mixture was then washed with water and saturated sodium chloride and dried over Na2SO4 and concentrated. The residue was purified by silica gel column chromatography (10:1 DCM/MeOH) 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 (2.2 g, 62%) as a white solid. ESI-MS (EI+, m/z): 502.2 [M+H]+.

Workup

  1. washThe reaction mixture was then 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 (10:1 DCM/MeOH)

Sources & evidence

ORD record
ord-6c64959f6f1241bd86fb1ddb72ce1f44
Source dataset
uspto-grants-2015_03
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08969570B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes