Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 251316Generated: October 26, 2026

Trifluoroacetic acid → Lys-Val-Lys

https://huagongshe.com/reaction/251316

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantFMOC-L-valineHCID 688217—
ReactantFmoc-Lys(Boc)-OHHCID 2724628—
Reactant(2S)-2-amino-6-(((tert-butoxy)carbonyl)amino)hexanoic acidHCID 2733283—
SolventDiethyl EtherHCID 3283—
ProductLys-Val-LysHCID 448140—

Reaction Steps

The protective peptide is built on 1.00 g (0.80 mmol) of H-Lys(Boc)-2-chlorotrityl resin using Fmoc-Val-OH, Fmoc-Lys(Boc)-OH and Palm-OSu. The resin is treated for 30 min with 8 ml of TFA 95% and the solution is instilled in 100 ml of Et2O. The precipitate is sucked off, washed and purified by prep. HPLC after drying. The substance is diluted in 30 ml of dioxan:water=4:6, treated overnight with 2.0 g of BioRad resin (acetate form), filtered, rotated and lyophilized. Yield: 110 mg (0.15 mmol, 19%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07863417B2
Source datasetuspto-grants-2011_01
ORD IDord-73c73a56b2d444b7857252e72f7b484d
Source noteuspto-grants-2011_01