E-resources
PDF-
Casalme, Loida O; Katayama, Keisuke; Hayakawa, Yoshiki; Nakamura, Kensuke; Yamauchi, Arisa; Nogata, Yasuyuki; Yoshimura, Erina; Matsuda, Fuyuhiko; Umezawa, Taiki
Marine drugs, 02/2022, Volume: 20, Issue: 2Journal Article
Some derivatives of dolastatin 16, a depsipeptide natural product first obtained from the sea hare , were synthesized through second-generation synthesis of two unusual amino acids, dolaphenvaline and dolamethylleuine. The second-generation synthesis enabled derivatizations such as functionalization of the aromatic ring in dolaphenvaline. The derivatives of fragments and whole structures were evaluated for antifouling activity against the cypris larvae of Small fragments inhibited the settlement of the cypris larvae at potent to moderate concentrations (EC = 0.60-4.62 μg/mL), although dolastatin 16 with a substituent on the aromatic ring ( ) was much less potent than dolastatin 16.
