HCID 54132072, compound → HCID 10206619, compound

Participants

Reaction Steps

5-(4-(2-(N-(2-Benzothiazolyl)-N-benzylamino)ethoxy)benzylidene)-2,4-thiazolidinedione (2.4 g) in dioxan (150 ml) was hydrogenated in the presence of 10% palladium-charcoal (4.8 g) for 3 h. at room temperature and atmospheric pressure. A further portion of catalyst (2.4 g) was added and the hydrogenation continued for a total of 20 h. The mixture was filtered through diatomaceous earth and the solvent was evaporated. The residue was chromatographed on silica gel with 3% methanol-dichloromethane as eluant to afford the title compound as a foam, which collapsed at 78° C.

Provenance & Evidence