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Urumamide, a novel chymotrypsin inhibitor with a β-amino acid from a marine cyanobacterium Okeania sp

Research paper by Yuki Kanamori, Arihiro Iwasaki, Shinpei Sumimoto, Kiyotake Suenaga

Indexed on: 05 Aug '16Published on: 04 Aug '16Published in: Tetrahedron Letters



Abstract

Urumamide, a novel cyclic depsipeptide that contains a β-amino acid, was isolated from a marine cyanobacterium Okeania sp. Its gross structure was determined by spectroscopic analyses, and the absolute configuration was established based on Marfey’s analyses and chiral HPLC analyses of hydrolysis products. Biologically, urumamide inhibited the growth of human cancer cells. In addition, urumamide inhibited chymotrypsin.

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