Trifluoroacetic acid → N-[(1-methyl-3-isobutyl-indole-2-cabonyl)valinyl]-3-amino-4-oxo-5-(4-fluorophenyloxy)-pentanoic Acid

Participants

Reaction Steps

Treatment of the product of Example 84 (72 mg, 0.118 mmol) with TFA as described in Example 80 gave the titled product (42.0 mg, 68%) as a pale yellow powder. MS C30H36FN3O6, [M+Na]+ =576, [M−H]− =552. TLC (hexane/EtOAc, 50/50): Rf=0.33.

Provenance & Evidence