Water → 5-(4-Hydroxy-benzylidene)-3-(1-methyl-cyclohexylmethyl)-thiazolidine-2,4-dione

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Reaktionsschritte

A solution of compound vii (0.5 mmol), compound iii (0.6 mmol) and K2CO3 (0.65 mmol) were stirred in DMF (3 mL) at 80° C. for 4 hr, poured into water, extracted with ethyl acetate (3×10 mL), dried and concentrated. The residue was purified by chromatography, affording compound 9 in 42% yield. 1H NMR (300 MHz, CDCl3) δ 0.94 (s, 3H), 1.14-1.86 (m, 10H), 3.63 (s, 2H), 5.69 (s, 1H), 6.94 (d, J=8.40 Hz, 2H), 7.43 (d, J=8.40 Hz, 2H), 7.83 (s, 1H); HRMS exact mass of (M+Na)+, 354.1140 amu; observed mass of (M+Na)+, 354.1141 amu.

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