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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 912875Generated: October 31, 2026

tert-Butyl piperazine-1-carboxylate → Tert-butyl 4-(5-carbamoyl-3-chloropyridin-2-yl)piperazine-1-carboxylate

https://huagongshe.com/reaction/912875

Reaction equation

Participants

RoleNameHCIDCharge
Reactanttert-Butyl piperazine-1-carboxylateHCID 143452—
Reactant5,6-Dichloropyridine-3-carboxamideHCID 2782167—
ProductTert-butyl 4-(5-carbamoyl-3-chloropyridin-2-yl)piperazine-1-carboxylateHCID 11573673—

Reaction Steps

The nicotinamide from step (b) above (1.3 g, 6.8 mmol) and piperazine-1-carboxylic acid tert-butyl ester (1.27 g, 6.8 mmol, Aldrich) reacted under the conditions Example 3a to give the title compound as a light-yellow solid. MS (ESI, pos. ion) m/z: 341 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08026241B2
Source datasetuspto-grants-2011_09
ORD IDord-bcac596ebbae4f228787875e5a8ca551
Source noteuspto-grants-2011_09