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A review on synthetic and natural steroid dimers: 1997-2006.
A comprehensive review of literature published over the last decade on various aspects of steroid dimers, including synthesis and applications, is presented. Expand
Reactions of tricalcium silicate paste with organic liquids
Abstract Thermoanalytical and other evidence shows that methanol, acetone and some other organic liquids are strongly sorbed by tricalcium silicate pastes, and cannot be completely removed by vacuumExpand
Steroid conjugates. Part III. Syntheses of 19-oxygenated dehydro-epi-androsterone sulphates
Routes to the sulphate salts of several 19-hydroxy- and 19-oxo-derivatives of 3β-hydroxyandrost-5-en-17-one are described. The 19-monosulphate of the 3β,19-diol was obtained by sulphation of theExpand
Structural studies of (E)-2-(benzylidene)- 2,3-dihydro-1H-inden-1-one derivatives: crystal structures and Hirshfeld surface analysis
Abstract Crystal structures are reported of (E)-2-(4-hydroxybenzylidene)-2,3-dihydro-1H-inden-1-one, 1, (E)-2-(4-dimethylaminobenzylidene)-2,3- dihydro-1H-inden-1-one, 2,Expand
The oxalate diester of dehydro­epi­androsterone
There are two independent mol­ecules of bis­(17-oxoandrost-5-en-3β-yl) oxalate, [or bis­(DHEA) oxalate], C40H54O6, in the asymmetric unit of the title compound. Molecules are held together by C—H⋯OExpand
Applications of high-potential quinones. Part VI. Stereoelectronic effects in the dehydrogenation of neoergosterols
Neoergosterols undergo rapid hydrogen transfer with dichlorodicyanobenzoquinone at room temperature to give Δ14-derivatives in high yield. Further dehydrogenation also occurs in ring D, givingExpand
Partial characterization of a biologically active steroid glycosideisolated from the starfish Marthasterias glacialis.
The rates of release of sugars and sulphate suggested that fucose was at the non-reducing end of the oligosaccharide, with glucose glycosidically linked to the steroid. Expand
Marine steroids. Part II. A synthesis of 3β,6α-dihydroxy-5α-pregn-9(11)-en-20-one
The title compound has been obtained in nine stages from 11α-hydroxyprogesterone, in an overall yield of 4 %.
3α-Hydroxy-5β-chol-11-en-24-oic acid, a new fungal metabolite
The title compound (1) has been isolated from the culture filtrate of a Curvularia species.
Marine steroids. 1. Structures of the principal aglycones from the saponins of the starfish, Marthasterias glacialis.
These are the first 23-oxo- cholestanes to be isolated from natural sources and on catalytic hydrogenation they yield 3β,6α-dihydroxy-5α-cholestan-23-one, which has been synthesised from stigmasterol. Expand