HCID 10028760, compound → HCID 10027612, compound

Participants

Reaction Steps

A solution of the ester from example 52 (60 mg, 0.12 mmol) in dioxan (4 ml) and 1N sodium hydroxide (4 ml) was stirred at room temperature for 5 hours. The mixture was concentrated under reduced pressure and the residue partitioned between water (20 ml) and ethyl acetate (20 ml). The layers were separated, the aqueous acidified to pH 1 using hydrochloric acid, and this soluton then re-extracted with ethyl acetate (2×20 ml). These combined organic extracts were dried (MgSO4) and evaporated under reduced pressure to afford the title compound, 49 mg; 1H NMR (CDCl3, 400 MHz) δ: 1.42–1.78 (m, 10H), 1.97 (m, 3H), 2.16 (m, 1H), 2.40–2.70 (m, 6H), 3.37 (m, 5H), 3.44 (m, 1H), 4.42 (m, 1H), 6.38 (d, 1H), 7.07 (d, 2H), 7.21 (d, 2H).

Provenance & Evidence