(R)-2-Benzyloxycarbonylamino-3-hydroxy-propionic acid 9,10-dioxo-9,10-dihydro-anthracen-2-ylmethyl ester

(R)-2-Benzyloxycarbonylamino-3-(tetrahydro-pyran-2-yloxy)-propionic acid (R)-2-benzyloxycarbonylamino-2-(9,10-dioxo-9,10-dihydro-anthracen-2-ylmethoxycarbonyl)-ethyl ester

N-(benzoyloxycarbonyl)-O-(tetrahydropyranyl)-D-serine

(R)-2-Benzyloxycarbonylamino-3-hydroxy-propionic acid (R)-2-benzyloxycarbonylamino-2-(9,10-dioxo-9,10-dihydro-anthracen-2-ylmethoxycarbonyl)-ethyl ester