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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 394496Generated: October 25, 2026

Trifluoroacetic acid → Fmoc-Lys(biotinyl)-OH

https://huagongshe.com/reaction/394496

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantDiisopropylethylamineHCID 81531—
ReactantSilane, tris(1-methylethyl)-HCID 138754—
ReactantBiotinHCID 171548—
Reactant(2S)-6-amino-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hexanoic acidHCID 7010557—
SolventDichloromethaneHCID 6344—
SolventN-methyl-2-pyrrolidoneHCID 13387—
ProductFmoc-Lys(biotinyl)-OHHCID 11039242—

Reaction Steps

Fmoc-Lys (mtt)-Resin was stirred with a mixture of 1% trifluoroacetic acid (TFA) and 0.1% triisopropylsilane (TIS) in DCM at 0° C. for 30 min and then for one hour at room temperature. Then, the resin was washed with NMP and DCM, and dried in vacuum. 2.68 gr. of loaded resin were obtained. This resin was then swelled with 25 ml NMP in the Presence of 930 mg Biotin, 1.44 gr. O-benzotriazole-N,N,N′,N′-tetramethyl-uronium-hexafluophosphate (HBTU), 513 mg N-hydroxybenzotriazole (HOBt) and 1 ml of diisopropylethylamine (DIEA). The reaction was stirred for 4.5 hr. Then, the resin was washed with NMP and DCM, and dried in vacuum. 2.8 gr. of Fmoc-Lys(Biotin)-resin were obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06602852B1
Source datasetuspto-grants-2003_08
ORD IDord-22dad0b7c3cc4d3faa07e200c8ef0318
Source noteuspto-grants-2003_08