Lithium Hydroxide → HCID 54567229, compound

Participants

Reaction Steps

A solution of methyl ester from Example 52 (90 mg) in THF (2 mL) and MeOH (1 mL) was treated with LiOH (2N, 276 μL ). The mixture was heated at reflux for 18 hr, cooled to r.t. and diluted with EtOAc and HCl 1N. The organic phase was washed with brine, dried (MgSO4) and the solvent evaporated to give the title compound as white foam; 1H NMR (300 MHz, Ace-d6): δ 1.64 (s,6H), 3.17 (s, 3H), 5.26 (s, 2H), 7.39 (m, 3H), 7.51 (t, 1H), 7.70 (m, 3H),7.86 (d, 2H), 8.0 (m, 3H), 8.15 (br s, 1H).

Provenance & Evidence