Supplier Page from Thermo Fisher Scientific for (S)-2-(Boc-amino)-4-phenylbutyric acid, 98%
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
DL-Ethyl 2-bromopropionate, 99% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethylbenzene, 99.8%, pure from Thermo Fisher Scientific