HuagongsheHuagongshe Chemistry Print Report · For research reference only
1-Hydroxybenzotriazole → (2S,5R)-6-(benzyloxy)-N'-(cyclobutylcarbonyl)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carbohydrazide
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 1-Hydroxybenzotriazole | HCID 75771 | — |
| Reactant | Cyclobutanecarbohydrazide | HCID 969366 | — |
| Reactant | 1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride | HCID 2723939 | — |
| Reactant | (2S,5R)-6-(Benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxylic acid | HCID 57389355 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | (2S,5R)-6-(benzyloxy)-N'-(cyclobutylcarbonyl)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carbohydrazide | HCID 86694043 | 100.9% |
Reaction Steps
To a mixture of (2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxylic acid 1 (0250 g, 0.905 mmol) in DCM (15.0 mL) were added cyclobutanecarbohydrazide 199 (0.155 g, 1.358 mmol), 1-hydroxybenzotriazole (0.186 g, 1.358 mmol) and 1-ethyl-(3-dimethylamino propyl) 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 200 (0.34 g, quant. yield) as a white foam.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08796257B2 |
| Source dataset | uspto-grants-2014_08 |
| ORD ID | ord-6b639d3ba6ee401b9e41fbb71bbe93ac |
| Source note | uspto-grants-2014_08 |