HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium hydride → tert-Butyl {1-[2-(6-methyl-3-oxo-2,3-dihydro-4H-1,4-benzoxazin-4-yl)ethyl]piperidin-4-yl}-carbamate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | 2H-1,4-Benzoxazine-3(4H)-one, 6-methyl- | HCID 2763839 | — |
| Reactant | 2-(4-((Tert-butoxycarbonyl)amino)piperidin-1-yl)ethyl methanesulfonate | HCID 56834478 | — |
| Reactant | tert-butyl {1-[2-(7-methoxy-2-oxoquinolin-1(2H)-yl)ethyl]piperidin-4-yl}carbamate | HCID 59371209 | — |
| Solvent | Dichloromethane methanol | HCID 21226129 | — |
| Product | tert-Butyl {1-[2-(6-methyl-3-oxo-2,3-dihydro-4H-1,4-benzoxazin-4-yl)ethyl]piperidin-4-yl}-carbamate | HCID 86642624 | 66% |
Reaction Steps
Commercially available 6-methyl-2H-1,4-benzoxazin-3(4H)-one (326 mg, 2.0 mmol) was deprotonated with sodium hydride and alkylated with 2-{4-[(tert-butoxycarbonyl)amino]piperidin-1-yl}ethyl methanesulfonate (Intermediate 6) (2.2 mmol) as described for Intermediate 2. Chromatography on silica gel with dichloromethane/methanol (20:1) gave the product in 66% yield as a colorless solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08124602B2 |
| Source dataset | uspto-grants-2012_02 |
| ORD ID | ord-e87cedd76dc64a888c4487ac0a0380a9 |
| Source note | uspto-grants-2012_02 |