Supplier Page from Thermo Fisher Scientific for (2R,3S)-3-(Boc-amino)-2-hydroxy-5-methylhexanoic acid, 97%
9-Fluorenone, 99+% from Thermo Fisher Scientific
Ethyl 4-bromocrotonate, 75%, tech from Thermo Fisher Scientific
Ethyl phenylcyanoacetate, 97% from Thermo Fisher Scientific
Ethylbenzene, 99.8%, pure from Thermo Fisher Scientific