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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2273576Generated: October 30, 2026

Carbonate Ion → Levobupivacaine

https://huagongshe.com/reaction/2273576

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCarbonate IonHCID 19660—
Reactant2-Piperidinecarboxamide, 1-butyl-N-(2,6-dimethylphenyl)-, hydrochloride (1:1), (2S)-HCID 117965—
Reactant(2,5-Dioxopyrrolidin-1-yl) carbonateHCID 22239412—
ProductLevobupivacaineHCID 92253—

Reaction Steps

In a first vial, levobupivacaine-HCl (25 mg), 4-arm PEG succinimidyl carbonate (60 mg) and 4-arm PEG-SH (60 mg) were dissolved in 250 μL of pH 2.2 buffer. This solution was combined with an equal volume of carbonate buffer (pH 9.7) through a spray kit. Levobupivacaine precipitated within the gel upon mixing. The levobupivacaine-loaded TC gel swelled 2-2.5 times its original volume.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09125814B2
Source datasetuspto-grants-2015_09
ORD IDord-7fc3c97944bc4f11bdea7c8fc99fcf4e
Source noteuspto-grants-2015_09