Competition between two metabolic pathways: oxidation and desulfuration in the thiobarbiturate series
摘要:
In order to study the competition between hepatic hydroxylation and desulfuration in the thiobarbiturate series, two compounds bearing a branched side chain with a tertiary carbon atom in position omega-1 were administered to rats over about one week, Urine and faeces were collected and extracted. The metabolites isolated were identified. It was shown that desulfuration was not the major metabolic pathway, and that, when it took place, it remained a minor process and was accompanied by gamma-hydroxylation into a tertiary alcohol.
Synthese de .DELTA.-lactones. V. Synthese d'alcoyl-3 .DELTA.-lactones.
作者:KUMIKO KURATA、SHIGERU TANAKA、KIYOSHI TAKAHASHI
DOI:10.1248/cpb.24.538
日期:——
Par condensation du bromure d'allyle, puis des halogenures d'alcoyles sur le malonate d'ethyle, nous avons prepare des alcoyl-allyl malonates d'ethyles. L'hydrolyse de ces esters donne des acides alcoyl-2Δ4-pentenoiques que I'on transforme, au moyen du bis-(methyl-3 butyl-2) borane, en acides alcoyl-2 hydroxy-5 pentanoiques. La cyclodehydration de ces acides hydroxyles conduit a des alcoyl-3 δ-lactones.
Efficient chemoselective alkylation of quinoline 2,4-diol derivatives in water
作者:Nafees Ahmed、Keyur G. Brahmbhatt、Inder P. Singh、Kamlesh K. Bhutani
DOI:10.1002/jhet.364
日期:2011.1
Synthesis of various C‐3‐dialkyl derivatives of quinoline 2,4‐diol was achieved by condensation of aniline or substituted anilines with diethyl malonate, followed by chemoselectivealkylation at C‐3 in water. The higher yields, easy work up and environmental compatible conditions are the main aspects of our method. J. Heterocyclic Chem., 2011.
Synthesis and antiviral activity of some oxygen-containing heterocyclic compounds
作者:M. G. Zalinyan、G. G. Danagulyan、E. A. Abgaryan、N. G. Balasanyan、É. R. Kalashyan、L. V. Korobchenko、G. V. Vladyko、E. I. Boreko、N. P. Mishaeva、I. K. Zubovich
DOI:10.1007/bf00777143
日期:1992.7
Competition between two metabolic pathways: oxidation and desulfuration in the thiobarbiturate series
In order to study the competition between hepatic hydroxylation and desulfuration in the thiobarbiturate series, two compounds bearing a branched side chain with a tertiary carbon atom in position omega-1 were administered to rats over about one week, Urine and faeces were collected and extracted. The metabolites isolated were identified. It was shown that desulfuration was not the major metabolic pathway, and that, when it took place, it remained a minor process and was accompanied by gamma-hydroxylation into a tertiary alcohol.