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Nat Prod Res
; 36(3): 742-747, 2022 Feb.
Artículo
en Inglés
| MEDLINE
| ID: mdl-32755232
RESUMEN
Two new steroid sulfates 1 and 2 were obtained from a lipophilic extract of an undescribed bryozoan species in the genus Calyptotheca. The structures of compounds 1 and 2 were elucidated by spectroscopic methods and chemical modifications. Steroids 1 and 2 exhibited moderate cytotoxicity at IC50 54 and 30 µM, respectively, against NBT-T2 cells.