Ethanol → HCID 178476316, compound

Participants

Reaction Steps

A solution of acetic acid 3-acetoxy-2-(4-{[4-cyano-1-(2-trimethylsilanyl-ethoxymethyl)-1H-imidazole-2-carbonyl]-amino}-3-cyclohex-1-enyl-phenyl)-propyl ester (as prepared in the previous step, 102 mg, 0.175 mmol) in DCM (2 mL) was treated with ethyl alcohol (EtOH) (60 μl) and TFA (0.6 mL) at RT for 2 h and concentrated in vacuo. The reaction mixture was dissolved in DCM (10 mL) and poured into satd aq NaHCO3. The organic layer was separated, dried (Na2SO4) and concentrated. The solid obtained was suspended in 1:1 ether/hexane, sonicated and concentrated in vacuo. The resulting residue was dried in vacuo to obtain the title compound (57 mg, 57%): 1H-NMR (CDCl3; 400 MHz): δ 12.90 (br s, 1H), 9.75 (s, 1H), 8.32 (d, 1H, J=8.4 Hz), 7.78 (s, 1H), 7.24 (dd, 1H, J=8.4, 2.0 Hz), 7.06 (d, 1H, J=2.0 Hz), 5.82 (br s, 1H), 4.38 (m, 4H), 3.35 (m, 1H), 2.23-2.35 (m, 4H), 2.10 (s, 6H), 1.75-1.92 (m, 4H): Mass spectrum, (ESI, m/z): Calcd. for C24H26N4O5, 451.2 (M+H). found 451.0.

Provenance & Evidence