Acetic Anhydride → HCID 87541472, compound

Participants

Reaction Steps

To a solution of Example 20, T1 in pyridine (0.15 M) was added Ac2O (1 eq) and the resulting mixture stirred overnight at RT. The solvent was evaporated under reduced pressure and the residue was purified at the prep RP-HPLC using H2O (+0.1% TFA) and MeCN (+0.1% TFA) as eluents (C18 column), the desired fractions were lyophilized to afford the titled compound as yellow powder. 1H NMR (300 MHz, DMSO-d6) δ: 10.97 (1H, d, J=5.6 Hz), 9.51 (1H, br. S), 8.22-8.16 (1H, m), 7.37-7.26 (3H, m), 7.20 (1H, s), 6.66-6.61 (1H, m), 4.42 (2H, s), 4.10 (1H, m), 3.63-3.14 (11H, m), 2.11 (1H, m), 1.95-1.88 (4H, m). MS (ES) C24H26Cl2FN5O3 required: 521, found: 522 (M+H)+.

Provenance & Evidence