Biotin-SS-NHS

Boc-Phe-(Alloc)Lys-PAB-PNP

Fmoc-Phe-Lys(Trt)-PAB-PNP

Phe-Lys(Trt)-PAB

Ald-Ph-amido-PEG2

Mal-C2-NHS ester

MC-Val-Cit-PAB

Val-Cit-PAB

DBCO-S-S-PEG3-Biotin

DBCO-PEG4-Alcohol

Bis-PEG3-NHS Ester

Ald-Ph-amido-PEG4-C2-acid

Azido-PEG3-Val-Cit-PAB-OH

Sulfo DBCO-Amine

Boc-Gly-Gly-Phe-Gly-OH