Anisole → H-Gln-Arg-Pro-Ala-Lys-OH

Participants

Reaction Conditions

Reaction Steps

The solution of 250 mg (0.225 mmol) of Boc-Gln-Arg(Tos)-Pro-Ala-Lys(ClZ)-OBzl (SEQ ID NO: 16), 1 ml of anisole and 2 ml of HF was stirred at 0° C. for 2 h. The reaction mixture was evaporated under reduced pressure to remove HF. To the residue 2 ml of HF were added and the solution was stirred at 0° C. for another 1 h. The reaction mixture was evaporated under reduced pressure to remove HF. The residue was triturated with ether and the resulted solid was purified on the Sephadex G-10 column. The collected fractions were lyophilized to provide 150 mg (98%) of the title compound. Mp. 180–182° C., FAB-MS (m/e) 600[M+H]+.

Provenance & Evidence