HCID 57386047, compound → HCID 66649435, compound

Participants

Reaction Steps

A solution of (3aR*,7S*,7aS*)-3-(3-tert-butyl-benzyl)-7-(3-fluoro-4-nitro-benzyl)-5,5-dioxo-hexahydro-1-oxa-5lambda*6*-thia-3-aza-inden-2-one (4.0 g, 8.1 mmol) in THF (150 mL) was hydrogenated over 10% Pd/C (300 mg) at 45° C. and 1 bar. After 16 h the catalyst was filtered off over Celite and the filtrate was evaporated. The residue was recrystallized from THF-hexane to yield the title compound as beige crystals: TLC (hexane-EtOAc 1:1) Rf=0.29; HPLC RtA=1.94 min; ESIMS [M+NH4]+=478; 1H NMR (400 MHz, CDCl3): δ 7.36 (d, 1H), 7.30 (d, 1H), 7.27 (s, 1H), 7.09 (d, 1H), 6.76 (dd, 1H), 6.7 (m, 2H), 4.52 (d, 1H), 4.31 (d, 1H), 3.85 (m, 1H), 3.74 (m, 1H), 3.05 (m, 3H), 2.80 (dd, 1H), 2.5-2.8 (m, 3H), 1.31 (s, 9H).

Provenance & Evidence