HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → HCID 67681543, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1) | HCID 9886157 | — |
| Reactant | (2S)-2-((methoxycarbonyl)amino)-3-methylbutanoic acid | HCID 10942966 | — |
| Reactant | HCID 69675358 | HCID 69675358 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 67681543 | HCID 67681543 | 37.7% |
Reaction Steps
To (S)-tert-butyl 2-(5-(4-bromophenyl)-1H-imidazol-2-yl)indoline-1-carboxylate (1.41 g, 3.2 mmol) in DCM (20 mL) was added HCl (4M in dioxane, 4 mL). The solution stirred for 2 h, and the solvent was removed. The intermediate was dissolved in DMF (30 mL). (S)-2-(methoxycarbonylamino)-3-methylbutanoic acid (560 mg, 3.2 mmol), HATU (1.22 g, 3.2 mmol), and DIPEA (2.79 mL, 16 mmol) were added sequentially. The solution stirred for 3 h, diluted with EtOAc, washed with sat. NaHCO3, brine, dried over MgSO4, and concentrated. The mixture was purified by silica gel chromatography to yield product (600 mg).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09156823B2 |
| Source dataset | uspto-grants-2015_10 |
| ORD ID | ord-66777311ea34455caf95c34a184a0f8a |
| Source note | uspto-grants-2015_10 |