Trifluoroacetic acid → HCID 58352676, compound

Participants

Reaction Steps

Compound 55 (268 mg, 0.91 mmol) was dissolved in 10 mL of CH2Cl2 and 5 mL of TFA (containing 5% H2O) was added. The mixture was stirred for 30 min at room temperature. The solution was then concentrated to dryness in vacuo to give the product 56 that was used immediately for the next step. 1H NMR (400 MHz, CDCl3) δ 1.15 (t, J=7.43 Hz, 3H), 2.40 (q, J=7.43 Hz, 2H), 4.16 (d, J=5.47 Hz, 2H), 4.78 (s, 2H), 5.75 (s, 2H), 6.30 (bs, 1H), 9.60 (s, 1H).

Provenance & Evidence