Trifluoroacetic acid → HCID 59599444, compound

Participants

Reaction Steps

To 140 mg 4-[4-(6-Amino-5-{1-[2,6-dichloro-3-(2,4,6-trimethoxy-benzyloxy)-phenyl]-ethoxy}-pyridin-3-yl)-benzoyl]-piperazine-1-carboxylic acid tert-butyl ester (from general procedure 53) was added 1 mL TFA, the solution turned reddish immediately followed by addition of 100 μL triethyl silane 3 seconds later. The solution turned to yellow. After stirring for four hours 5 mL of toluene were added and the solvent was removed in vacuo. Chromatography with 10% MeOH/CH2Cl2 to 0.5% to 1% NH4OH/9.5 to 9% MeOH/90% CH2Cl2 led to 55 mg of a white solid, 62° A) yield.

Provenance & Evidence