New Tricks in Amino Acid Synthesis: Applications to Complex Natural Products.

We report the application of diphenyloxazinone glycinate chiral templates to asymmetric syntheses of cylindrospermospin, 7-epi-cylindrospermopsin, 7-deoxycylindrospermopsin, and spirotryprostatins A and B. Synthetic studies toward quinine, nakadomarin A, and palau'amine using these templates are also described.