Supplier Page from Aladdin Scientific Corporation for 1-oxo-6-oxa-9-aza-spiro[4.5]decane-2,9-dicarboxylic acid 9-tert-butyl ester 2-ethyl ester
1-Acetoxy-3-chloroacetone from Aladdin Scientific Corporation
3-Bromophenylacetonitrile from Aladdin Scientific Corporation
Boc-3,4-dimethoxy-l-phenylalanine from Aladdin Scientific Corporation
Propargyl bromide from Aladdin Scientific Corporation