Supplier Page from Thermo Fisher Scientific for Nµa-Boc-Nµw-(2,2,4,6,7-pentamethyl-2,3-dihydrobenzo[b]furan-5-sulfonyl)-L-arginine, 96%
3-Ethoxy-2-cyclohexen-1-one, 99% from Thermo Fisher Scientific
Ethyl 2-oxocyclohexanecarboxylate, 95% from Thermo Fisher Scientific
Ethylenediamine, 99% from Thermo Fisher Scientific
meso-Erythritol, 99% from Thermo Fisher Scientific