Supplier Page from Aladdin Scientific Corporation for (3R,6R)-5-[(tert-butoxy)carbonyl]-1,1-difluoro-5-azaspiro[2.4]heptane-6-carboxylic acid
6-Fluorochroman-4-amine hydrochloride from Aladdin Scientific Corporation
Fluorescein PEG NHS, FITC-PEG-NHS from Aladdin Scientific Corporation
N,N-Diethylmethylamine from Aladdin Scientific Corporation
PDE4 inhibitor 16 from Aladdin Scientific Corporation