... Page 8. 5308 Vol. 33 (1985) 9.5 mmol) were dissolved in DMF (50 ml) and cooled with ice-salt. ... The extract was washed with 1 if, AcOH and water, dried over NaZSO4 and concentrated to a small volume. ... and U. Okamoto, “Peptide Chemistry 1985.“ ed. by Y. Kiso. ...