Supplier Page from Thermo Fisher Scientific for (R)-(+)-1-Boc-3-methylpiperazine, 97%
2-Furoic acid, 98% from Thermo Fisher Scientific
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl oxalyl chloride, 98% from Thermo Fisher Scientific