Supplier Page from Aladdin Scientific Corporation for N-(4-Benzyloxytrityl)-N'-(2-nitrobenzenesulfonyl)-1,4-diaminobutane Resin cross-linked with 1% DVB (200-400mesh) (0.9-1.1mmol/g)
(6S)-4-oxo-5-azaspiro[2.4]heptane-6-carboxylic acid from Aladdin Scientific Corporation
4-tert-butyl 3-methyl (3S)-morpholine-3,4-dicarboxylate from Aladdin Scientific Corporation
Fmoc-D-3,4-difluorophenylalanine from Aladdin Scientific Corporation
Itaconic acid from Aladdin Scientific Corporation