Iriomoteolides-14a and 14b, New Cytotoxic 15-Membered Macrolides from Marine Dinoflagellate Amphidinium Species.

Masashi Tsuda, Ryui Makihara, Masayuki Tsuda, Takeyuki Suzuki

Chemical & pharmaceutical bulletin 2020

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Two new macrolides, iriomoteolides-14a (1) and 14b (2) have been isolated from the marine dinoflagellate Amphidinium species (strain KCA09057). Compounds 1 and 2 are 15-membered macrolides, which are structural analogs of amphidinolides O (3) and P (4). The structures of 1 and 2 were assigned on the basis of detailed NMR analyses and chemical conversion studies. Compounds 1 and 2 showed moderate cytotoxic activity against human cervix adenocarcinoma HeLa cells.

Citation

Masashi Tsuda, Ryui Makihara, Masayuki Tsuda, Takeyuki Suzuki. Iriomoteolides-14a and 14b, New Cytotoxic 15-Membered Macrolides from Marine Dinoflagellate Amphidinium Species. Chemical & pharmaceutical bulletin. 2020;68(9):864-867