HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium cyanoborohydride → 4-[2-(4-{[(2E)-3-(2,5-difluorophenyl)prop-2-en-1-yl]amino}piperidin-1-yl)ethyl]-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carbonitrile
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium cyanoborohydride | HCID 5003444 | — |
| Reactant | 4-[2-(4-aminopiperidin-1-yl)ethyl]-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carbonitrile | HCID 66774987 | — |
| Reactant | 4-[2-(4-Aminopiperidin-1-yl)ethyl]-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carbonitrile trifluoroacetate | HCID 66775058 | — |
| Reactant | (2E)-3-(2,5-difluorophenyl)-2-propenal | HCID 86642138 | — |
| Solvent | Dichloromethane methanol | HCID 21226129 | — |
| Product | 4-[2-(4-{[(2E)-3-(2,5-difluorophenyl)prop-2-en-1-yl]amino}piperidin-1-yl)ethyl]-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carbonitrile | HCID 11983216 | 30.9% |
Reaction Steps
4-[2-(4-Aminopiperidin-1-yl)ethyl]-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carbonitrile (Intermediate 58) (1.5 mmol), (2E)-3-(2,5-difluorophenyl)acrylaldehyde (202 mg, 1.2 mmol) (FR 2872164) (200 mg, 1.1 mmol) and sodium cyanoborohydride were reacted as described under Example 21. Chromatography on silica gel with dichloromethane/methanol gave 168 mg (25%) product
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07875715B2 |
| Source dataset | uspto-grants-2011_01 |
| ORD ID | ord-4f814522884d474ead72cafd4c79cdbe |
| Source note | uspto-grants-2011_01 |