ChemInform Abstract: Speradines B—E, Four Novel Tetracyclic Oxindole Alkaloids from the Marine‐Derived Fungus Aspergillus oryzae.

Abstract

Speradines B-E, Four Novel Tetracyclic Oxindole Alkaloids from the Marine--Derived Fungus Aspergillus oryzae. -Isolation and structure elucidation of four novel alkaloids speradine B (Ia), C (Ib), D (Ic), and E (II) are presented (without the absolute configuration). Compounds (Ia) and (II) show weak cytotoxic effects on the HeLa cell line. -(CHEN*, L.; ZHANG, Q.-Q.; HU, X.; XIA, Q.-W.; ZHAO, Y.-Y.; ZHENG, Q.-H.; LIU, Q.-Y.; Heterocycles 89 (2014) 7, 1662-1669, http://dx.doi.org/10.3987/COM-14-13004 ; Coll. Chem. Chem. Eng., Fuzhou Univ., Fuzhou 350002, Fujian, Peop. Rep. China; Eng.) -M. Bohle 52-201