A new steroid with 7β,8β-epoxidation from the deep sea-derived fungus Aspergillus penicillioides SD-311
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DOI: 10.1080/10286020.2020.1791096
Abstract: Abstract 7β,8β-epoxy-(22E,24R)-24-methylcholesta-4,22-diene-3,6-dione (1), a new steroid, along with five known analogues (2–6), was isolated from the deep sea-derived fungus, Aspergillus penicillioides SD-311. Strikingly, 1 possessed a rare 7,8-epoxidation moiety. Meanwhile, this is the first time… read more here.
Keywords: aspergillus penicillioides; deep sea; derived fungus; sea derived ... See more keywords
Isolation of a new steroid from phytochemical investigation on Caralluma lasiantha
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DOI: 10.1080/10286020.2022.2080671
Abstract: Abstract A new steroid (acylated C21 pregnane steroid) was isolated from chloroform extract in phytochemical screening of Caralluma lasiantha. The isolated compound is found to be 3β-hydroxy-14β–(6′- carboxyphenyl)propionyloxypregn–5-en-20-one based on spectroscopic studies (IR, 1H NMR,… read more here.
Keywords: new steroid; caralluma lasiantha; isolation new; steroid phytochemical ... See more keywords
Two new steroid sulfates from a cheilostome bryozoan, Calyptotheca sp.
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DOI: 10.1080/14786419.2020.1800695
Abstract: 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… read more here.
Keywords: steroid sulfates; two new; sulfates cheilostome; new steroid ... See more keywords