1-Hydroxybenzotriazole → di-tert-butyl 4-[({[(2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]oct-2-yl]carbonyl}amino)oxy]pyrazolidine-1,2-dicarboxylate

HRID 1053403Notes

Reaction equation

HRID 1053403 reaction equation
[CH2:1]([O:8][N:9]1[C:15](=[O:16])[N:14]2[CH2:17][C@H:10]1[CH2:11][CH2:12][C@H:13]2[C:18]([OH:20])=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[NH2:21][O:22][CH:23]1[CH2:27][N:26]([C:28]([O:30][C:31]([CH3:34])([CH3:33])[CH3:32])=[O:29])[N:25]([C:35]([O:37][C:38]([CH3:41])([CH3:40])[CH3:39])=[O:36])[CH2:24]1.ON1C2C=CC=CC=2N=N1.Cl.C(N=C=NCCCN(C)C)C>C(Cl)Cl>[CH2:1]([O:8][N:9]1[C:15](=[O:16])[N:14]2[CH2:17][C@H:10]1[CH2:11][CH2:12][C@H:13]2[C:18]([NH:21][O:22][CH:23]1[CH2:24][N:25]([C:35]([O:37][C:38]([CH3:39])([CH3:40])[CH3:41])=[O:36])[N:26]([C:28]([O:30][C:31]([CH3:34])([CH3:33])[CH3:32])=[O:29])[CH2:27]1)=[O:20])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

6

Reactant 4

HCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 57389355(2S,5R)-6-(Benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxylic acidHCID 86694007Di-tert-butyl 4-(aminooxy)pyrazolidine-1,2-dicarboxylate

Product 1

HCID 86694008di-tert-butyl 4-[({[(2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]oct-2-yl]carbonyl}amino)oxy]pyrazolidine-1,2-dicarboxylateYield 85%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a mixture of (2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxylic acid 1 (0.250 g, 0.905 mmol) in DCM (10.0 mL) were added di-tert-butyl 4-(aminooxy)pyrazolidine-1,2-dicarboxylate 143 (0.411 g, 1.358 mmol), 1-hydroxybenzotriazole (0.183 g, 1.358 mmol) and 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride (0.260 g, 1.358 mmol) sequentially at room temperature. The mixture was stirred at room temperature overnight, diluted with DCM and concentrated to provide a residue which was subjected to chromatography to give 144 (0.43 g, 85%) as a white foam.

Workup

  1. concentrationconcentrated
  2. customto provide a residue which

Sources & evidence

ORD record
ord-de3c536ec5e341e1bca435b7e2dcc793
Source dataset
uspto-grants-2016_07
Patent number
US09393239B2

Reaction notes

Loading…