Cholestane glycosides from Ornithogalum saundersiae bulbs and the induction of apoptosis in HL-60 cells by OSW-1 through a mitochondrial-independent signaling pathway
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DOI: 10.1007/s11418-018-1252-4
Abstract: A search for cytotoxic cholestane glycosides from Ornithogalum saundersiae bulbs resulted in the isolation of three new OSW-1 analogues (1–3), a new cholestane bisdesmoside (4), a 5β-cholestane diglycoside (5), and four new 24(23 → 22)-abeo-cholestane glycosides (6–9),… read more here.
Keywords: glycosides ornithogalum; cholestane glycosides; ornithogalum saundersiae; cholestane ... See more keywords
Synthesis of 26-methyl cholestane and identification of cryostanes in mid-Neoproterozoic sediments
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DOI: 10.1016/j.orggeochem.2017.11.006
Abstract: Abstract The biomarker distributions of mid-Neoproterozoic sediments (800–717 million yr, Ma) from various locations are characterized by the occurrence, besides cholestane isomers, of a novel series of C28 steranes, whereas classical C-24 alkylated steranes are absent.… read more here.
Keywords: mid neoproterozoic; synthesis methyl; cholestane; identification ... See more keywords