HuagongsheHuagongshe Chemistry Print Report · For research reference only
tert-Butyl piperazine-1-carboxylate → 6-[4-(tert-Butoxycarbonyl)piperazin-1-yl]-5-chloropyridine-3-carboxylic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | tert-Butyl piperazine-1-carboxylate | HCID 143452 | — |
| Reactant | 5,6-Dichloronicotinic acid | HCID 247987 | — |
| Product | 6-[4-(tert-Butoxycarbonyl)piperazin-1-yl]-5-chloropyridine-3-carboxylic acid | HCID 11609828 | — |
Reaction Steps
5,6-Dichloro-nicotinic acid (5.0 g, 0.026 mol, Aldrich) reacted with piperazine-1-carboxylic acid tert-butyl ester (4.87 g, 0.026 mol, Aldrich) under the conditions of Example 3a to give the title compound as yellow semi-solid, which was used in the next step without further purification. MS (ESI, neg. ion) m/z: 340 (M-1).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07582761B2 |
| Source dataset | uspto-grants-2009_09 |
| ORD ID | ord-93faf05e0c8f458a8e6acb47cfab2b9c |
| Source note | uspto-grants-2009_09 |