PEG

Gefitinib-based PROTAC 3 contains an EGFR binding element and a von Hippel-Lindau ligand joined by a linker which induces EGFR degradation.

(S,R,S)-AHPC-BOC is a ligand used to recruit the von Hippel-Lindau protein.

2-(2-((Benzyloxy)carbonyl)amino)ethoxy)ethyl 4-methylbenzenesulfonate is a PEG linker containing a tosyl group and benzyl (Cbz) protecting group. The hydrophilic PEG spacer increases the water solubility of the compound in aqueous media. The tosyl group is a very good leaving group for nucleophilic substitution reactions. The benzyl protecting group can be removed via hydrogenolysis to form a free amine. Reagent grade, for research use only.

CbzNH-PEG4-CH2COOH is a PEG linker containing an carboxylic acid (CO2H) group and a benzyl (Cbz) protecting group. The hydrophilic PEG spacer increases the water solubility of a compound in aqueous media. The terminal carboxylic acid is reactive with primary amine groups in the presence of activators (e.g. HATU) forming a stable amide bond. The benzyl protecting group can be removed via hydrogenolysis to form a free amine. Reagent grade, for research use only.

tert-Butyl (2-(2-(2-iodoethoxy)ethoxy)ethyl)carbamate is a PEG linker containing a Boc protected amine and an iodine group. The protected amine can be deprotected under mild acidic conditions. Iodine (I) is a very good leaving group for nucleophilic substitution reactions. The hydrophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research use only.

3-(2-Iodoethoxy)prop-1-yne is a crosslinker that can be used in copper catalyzed azide-alkyne Click Chemistry to form a stable triazole linkage with azides. The iodine (I) acts as a good leaving group for nucleophilic substitution reactions. Reagent grade, for research use only.

t-butyl acetate-PEG2-CH2COOH is a PEG linker containing a t-butyl group with a terminal carboxylic acid. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. HATU) to form a stable amide bond. The hydrophilic PEG spacer increases solubility in aqueous media. The t-butyl group can be deprotected under acidic conditions. Reagent grade, for research use only.

tert-Butyl 3-(2-iodoethoxy)propanoate is a PEG reagent containing an iodine group and a t-butyl ester. The iodine (I) acts as a good leaving group for nucleophilic substitution reactions. The t-butyl ester groups can be deprotected under acidic conditions. Reagent grade, for research use only.

tert-Butyl (2-(prop-2-yn-1-yloxy)ethyl)carbamate is crosslinker consisting of a propargyl group and a t-Boc protected amine group. The propargyl group reacts with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry reactions. The t-Boc protected amine can be deprotected under mild acidic conditions. Reagent grade, for research use only.