(a.) Resembling, or partaking of the nature of, sulphur; having the qualities of sulphur.
Example Sentences:
Sulphuryl
Definition:
(n.) The hypothetical radical SO2; -- called also sulphon.
Example Sentences:
(1) This drop might reflect a sudden decrease in the plasma levels of oestrone sulphate due to a decreased sulphurylating activity in the liver.
(2) Phenyl [(R)-16O,17O,18O]sulphate was synthesized and used to study the stereochemical course of sulphuryl transfer to p-cresol catalysed by arylsulphatase II from Aspergillus oryzae.
(3) Comparative data on the sulphurylating activity of rats maintained on diets providing poor-quality protein, i.e.
(4) Rats consuming a 6% casein diet had a significantly lower liver sulphurylating activity when compared to those fed 12 and 18% casein diets.
(5) In addition, reaction of the pentabenzoate 2b with sulphuryl chloride initially afforded the 6'-chloro derivative, which was then slowly transformed into a mixture of the 4',6'-dichloro-lactoside and an isomer in which the non-reducing ring of the disaccharide had been transformed into a 3',6'-dideoxy-3',6'-dichloro-gulopyranoside.
(6) ragi (Eleusine coracana) and maize (Zea mays) revealed a higher sulphurylating activity in the maize-fed group showing thereby that the amino acid composition of the protein apparently influences the enzyme activity associated with sulphurylation of phenols.
(7) The method is based on charring the spots with sulphuric acid generated from interaction of sulphuryl chloride with water vapour, and quantification of carbohydrates by photodensitometry of the chromatograms.
(8) Only one of the four ER- cell lines (BT-20) sulphurylated ADIOL and this was at a 12-fold lower rate compared to the mean value for the ER + cel lines.
(9) 20beta-reduction of corticosterone and deoxycorticosterone occurred only with the 21-sulphurylated derivatives.
(10) It is proposed furthermore that a specific control of DHEAS secretion in the adrenal may exist at the level of the sulphurylation step.
(11) The sulphurylation of phenol is inhibited by thiol compounds and glutathione at a concentration of 3mm caused an approx.
(12) 3',4',5,6-Tetradoxyneamine (7) was synthesized from neamine by the reaction sequence N-acetylation, O-mesylation, treatment with sodium iodide-zinc dust, hydrogenation, and base hyrolysis, Alternatively, 7 was obtained by treatment of tetra-(N-methoxycarbonyl)neamine with sulphuryl chloride, followed by hydrogenation in the presence of palladium-on-charcoal and triethylamine, and removal of the N-protecting groups.
(13) Since ADIOL is estrogenic in a number of systems at the concentration found in the blood of Western women (approximately 2 nM), the coordinated expression of hydroxysteroid sulphotransferase, estrogen sulphotransferase, and ER, supports the concept of a functional relationship between estrogen action via ER and sulphurylation reactions.
(14) Studies on the sulphurylation of phenols by livers from normal and vitamin-A-deficient rats showed a significant reduction in sulphurylating activity in the acute stage of deficiency.
(15) The purified preparation did not catalyse the sulphurylation of dehydroepiandrosterone, butan-1-ol, l-tyrosine methyl ester, 1-naphthylamine or serotonin.
(16) It is thus shown that liver sulphurylating activity is influenced by quantity and quality of protein consumed.
(17) An alternative route involved treatment of 3',4'-di-O-acetyl-tetra-(N-methoxycarbonyl)-neamine (8) with sulphuryl chloride, hydrogenation of the product, and removal of the protecting groups to give 11.