HuagongsheHuagongshe Chemistry Print Report · For research reference only
Diisopropylethylamine → HCID 57883850, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | tert-Butyl piperazine-1-carboxylate | HCID 143452 | — |
| Reactant | Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1) | HCID 2733084 | — |
| Reactant | 2-(3,3-Dicyclohexylureido)thiazole-5-carboxylic acid | HCID 11405447 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 57883850 | HCID 57883850 | 72% |
Reaction Steps
2-(3,3-Dicyclohexyl-ureido)-thiazole-5-carboxylic acid (176 mg, 0.50 mmol), piperazine carboxylic acid tert-butyl ester (140 mg, 0.75 mmol), and HBTU (285 mg, 0.75 mmol) were weighed out and added to a 25 mL reaction flask. DMF (5 mL) and DIEA (175 μL, 1.0 mmol) were added. The reaction was stirred under nitrogen at ambient temperature overnight. The reaction was diluted with EtOAc (10 mL) and quenched with saturated aqueous NH4Cl (10 mL). After separation and extraction with EtOAc (2×5 mL) the combined organic portions were dried over MgSO4. Purification with silica gel and 10% EtOAc in CH2Cl2 afforded 187 mg (72%) of the desired compound.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | USRE045183E1 |
| Source dataset | uspto-grants-2014_10 |
| ORD ID | ord-8cdb555586e4488994c4fdde8f45a39e |
| Source note | uspto-grants-2014_10 |