HCID 15550636, compound → HCID 12016878, compound

Participants

Reaction Steps

The title compound was prepared via catalytic hydrogenation of the compound prepared in Example F above. Briefly, the starting material was in methanol and placed in a closed vessel. A catalytic amount of 10% Pd/charcoal was added and the mixture was hydrogenated at 60 psi H2 for 4 h. The resulting mixture was filtered through celite, the solvent was evaporated and the residue was purified by chromatography (silica; EtOAc/Hexane, 1:4) to yield the title compound. 1H-NMR (CDCl3): δ 7.43 (1H, m), 6.80 (1H, br s), 6.73-6.60 (3H, m), 5.67 (1H, s), 3.84 (3H, s). MS(EI): 351 (20, M+), 138 (100). Anal. Calcd. for C13H9F4NO4S: C, 44.45; H, 2.58; N, 3.99; S, 9.13. Found: C, 44.39; H, 2.59; N, 3.94; S, 9.24.

Provenance & Evidence