Arvid Ek

The Synthesis of Labile Hydroxytryptophan Metabolites1

B. Witkop, Arvid Ek, 1954 .

SYNTHESIS AND BIOCHEMISTRY OF 5- AND 7- HYDROXYTRYPTOPHAN AND DERIVATIVES1

B. Witkop, Arvid Ek, 1953 .

Chemical contributions to the mechanism of the biological oxidation of tryptophan

B. Witkop, J. Patrick, H. Kissman, 1952, Experientia.

Twofold Wagner-Meerwein Rearrangements. II

B. Witkop, Arvid Ek, 1951 .