Supplier Page from Thermo Fisher Scientific for 1-Boc-isonipecotic acid ethyl ester, 97+%
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
4-Fluorobenzyl chloride, 98% from Thermo Fisher Scientific
Ethyl propiolate, 99% from Thermo Fisher Scientific
meso-Erythritol, 99% from Thermo Fisher Scientific