HCID 57194982, compound → HCID 86757884, compound

Participants

Reaction Steps

A solution of Nα-17-tetrabenzo(a,c,g,i)fluorenylmethyl-L-phenylalanine tert-butyl ester (421.1 mg, 0.702 mmol) in trifluoroacetic acid (3.6 ml) and water (0.2 ml) was sonicated for 3.5 h at room temperature. The solvent was removed in vacuo to give a brown residue. Trituration in diethylether gave the compound (53) as a yellow solid which was chilled overnight, filtered, washed with ether, and finally dried (352.7 mg, 92%);

Provenance & Evidence