1-Hydroxybenzotriazole → HCID 86694040, compound

HRID 2400707Notes

Reaction equation

HRID 2400707 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.[CH:21]1([C:24]([NH:26][NH2:27])=[O:25])[CH2:23][CH2:22]1.ON1C2C=CC=CC=2N=N1.Cl.C(N=C=NCCCN(C)C)C>C(Cl)Cl.CN(C)C1C=CN=CC=1>[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:27][NH:26][C:24]([CH:21]1[CH2:23][CH2:22]1)=[O:25])=[O:20])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

7

Reactant 4

HCID 757711-HydroxybenzotriazoleHCID 81396CyclopropanecarbohydrazideHCID 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 acid

Product 1

HCID 86694040HCID 86694040, compoundYield 84%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent

Procedure

To a solution of (2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxylic acid 1 (0.25 g, 0.90 mmol) in dry DCM (30 mL) were added cyclopropanecarbohydrazide 196 (0.135 g, 1.35 mmol), 1-hydroxybenzotriazole (0.19 g, 1.35 mmol), 1-ethyl-(3-dimethylaminopropyl)carbodiimide hydrochloride (0.26 g, 1.35 mmol) and 4-(dimethylamino)pyridine (0.16 g, 1.35 mmol) at room temperature. The reaction mixture was stirred at room temperature overnight, and concentrated under vacuum. The residue was purified by column chromatography to give (2R,5S)-6-(benzyloxy)-N′-(cyclopropylcarbonyl)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carbohydrazide 197 (0.27 g, 84%) as a white solid.

Workup

  1. concentrationconcentrated under vacuum
  2. customThe residue was purified by column chromatography

Sources & evidence

ORD record
ord-5fbcb5bf713c4b0eaeb490a5c91ae113
Source dataset
uspto-grants-2014_08
Patent number
US08796257B2

Reaction notes

Loading…