... The products la, lb, and IC were trans- formed into the corresponding (Shphenylethylamido (7) Steiger, R. E. Organic Syntheses; Wiley: New York, 1955; Collect. Vol. 3, p 664. ... Page 3. 7294 J . Org. Chem., Vol. 59, No. 24, 1994 Braschi et al. ...