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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 277617Generated: October 25, 2026

D-Alanine → DOTA biotin

https://huagongshe.com/reaction/277617

Reaction equation

Participants

RoleNameHCIDCharge
ReactantD-AlanineHCID 71080—
ReactantN-HydroxysuccinimideHCID 80170—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
ReactantBiotinyl-d-alanineHCID 22863182—
ReactantDOTA anilineHCID 131719895—
ProductDOTA biotinHCID 87364501—

Reaction Steps

The D-alanine-linked conjugate was prepared by first coupling D-alanine (Sigma Chemical Co.) to biotin-NHS ester. The resultant biotinyl-D-alanine was then activated with 1-(3-dimethylaminopropyl)-3-ethyl-carbodiimide hydrochloride (EDCI) and N-hydroxysuccinimide (NHS). This NHS ester was reacted in situ with DOTA-aniline to give the desired product which was purified by preparative HPLC.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06358490B2
Source datasetuspto-grants-2002_03
ORD IDord-de74687018da4a6989aa8c9929cb9295
Source noteuspto-grants-2002_03