HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1635047Generated: October 26, 2026
Pyrazine, 2-chloro-3-methyl- → 1-[2-[(3-Methyl-2-pyrazinyl)amino]-ethyl]4-piperidinemethanol
https://huagongshe.com/reaction/1635047
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Pyrazine, 2-chloro-3-methyl- | HCID 66769 | — |
| Reactant | [1-(2-Aminoethyl)piperidin-4-yl]methanol | HCID 19104142 | — |
| Product | 1-[2-[(3-Methyl-2-pyrazinyl)amino]-ethyl]4-piperidinemethanol | HCID 10933938 | 29% |
Reaction Steps
A mixture of 1-(2-amino-ethyl)-4-piperidinemethanol (5.2 g), 2-chloro-3-methyl-pyrazine (5.0 g) and CaO (4.5 g) was stirred for 20 hours at 120° C. The reaction mixture was cooled and purified by column chromatography over silica gel (eluent: CH2Cl2/(CH3OH/NH3) 92/8). The pure fractions were collected and the solvent was evaporated, yielding 2.3 g (29%) 1-[2-[(3-methyl-2-pyrazinyl)amino]-ethyl]-4-piperidinemethanol (intermediate 1).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US06509339B2 |
|---|
| Source dataset | uspto-grants-2003_01 |
|---|
| ORD ID | ord-eb61af847a32417d99c5d503903edba8 |
|---|
| Source note | uspto-grants-2003_01 |
|---|
