The syntheses of 3,3-dimethylenedithioaldehydes carring a CO2R, OTHP or OAc group at the omega-position in lineal five-carbon chains are reported. The dithiolane group makes these compounds substitutes of the corresponding unstable beta-ketoaldehydes as synthetic five-carbon building blocks.
Design, Synthesis, and Melatoninergic Activity of New Azido- and Isothiocyanato-Substituted Indoles
摘要:
To develop irreversibly binding ligands for the melatonin receptor(s) as tools for tracing the primary melatonin binding site, we report on the design and synthesis of new melatoninergic azido- and isothiocyanato-substituted indoles. All active compounds were partial agonists or antagonists in the Xenopus melanophore assay, the most potent being the 5-OMe C3-substituted azido 45 and isothiocyanato 46 analogues.