Bicyclic N-Hydroxyurea Inhibitors of 5-Lipoxygenase: Pharmacodynamic, Pharmacokinetic, and in Vitro Metabolic Studies Characterizing N-Hydroxy-N-(2,3-dihydro-6-(phenylmethoxy)-3-benzofuranyl)urea
摘要:
A series of N-hydroxyurea derivatives have been prepared and examined as inhibitors of 5-lipoxygenase. Oral activity was established by examining the inhibition of LTB(4) biosynthesis in an ex vivo assay in the mouse. The pharmacodynamic performance in the mouse of selected compounds was assessed using an ex vivo LTB(4) assay and an adoptive peritoneal anaphylaxis assay at extended pretreat times. Compounds with an extended duration of action were reexamined as the individual enantiomers in the ex vivo assay, and the (S) enantiomer of N-hydroxy-N-[2,3-dihydro-6-(phenylmethoxy)-3-benzofuranyl]urea, (+)-1a (SE 202235), was selected as the compound with the best overall profile. Higher plasma concentrations and longer plasma half-lives were found for (+)-1a relative to its enantiomer in the mouse, monkey, and dog. In vitro metabolic studies in mouse liver microsomes established enantiospecific glucuronidation as a likely mechanism for the observed differences between the enantiomers of la. Enantioselective glucuronidation favoring (-)-1a was also found in human liver microsomes.
Bicyclic N-Hydroxyurea Inhibitors of 5-Lipoxygenase: Pharmacodynamic, Pharmacokinetic, and in Vitro Metabolic Studies Characterizing N-Hydroxy-N-(2,3-dihydro-6-(phenylmethoxy)-3-benzofuranyl)urea
摘要:
A series of N-hydroxyurea derivatives have been prepared and examined as inhibitors of 5-lipoxygenase. Oral activity was established by examining the inhibition of LTB(4) biosynthesis in an ex vivo assay in the mouse. The pharmacodynamic performance in the mouse of selected compounds was assessed using an ex vivo LTB(4) assay and an adoptive peritoneal anaphylaxis assay at extended pretreat times. Compounds with an extended duration of action were reexamined as the individual enantiomers in the ex vivo assay, and the (S) enantiomer of N-hydroxy-N-[2,3-dihydro-6-(phenylmethoxy)-3-benzofuranyl]urea, (+)-1a (SE 202235), was selected as the compound with the best overall profile. Higher plasma concentrations and longer plasma half-lives were found for (+)-1a relative to its enantiomer in the mouse, monkey, and dog. In vitro metabolic studies in mouse liver microsomes established enantiospecific glucuronidation as a likely mechanism for the observed differences between the enantiomers of la. Enantioselective glucuronidation favoring (-)-1a was also found in human liver microsomes.
Synthesis of Nitrogen-Containing Phenoxyacetic Acid Derivatives
作者:E. T. Yamansarova、O. S. Kukovinets、R. A. Zainullin、F. Z. Galin、M. I. Abdullin
DOI:10.1007/s11178-005-0201-3
日期:2005.4
Nitrogen-containing phenoxyacetic acid derivatives were synthesized by reactions of substituted phenoxyacetic acids with amines, urea, and ethyl carbamate.
通过取代的苯氧乙酸与胺、脲和氨基甲酸乙酯的反应,合成了含氮苯氧乙酸衍生物。
Bicyclic N-Hydroxyurea Inhibitors of 5-Lipoxygenase: Pharmacodynamic, Pharmacokinetic, and <i>in Vitro</i> Metabolic Studies Characterizing <i>N</i>-Hydroxy-<i>N</i>-(2,3-dihydro-6-(phenylmethoxy)-3-benzofuranyl)urea
作者:Jerry L. Adams、Ravi S. Garigipati、Margaret Sorenson、Stanley J. Schmidt、William R. Brian、John F. Newton、Kathy A. Tyrrell、Eric Garver、Lee A. Yodis、Marie Chabot-Fletcher、Maritsa Tzimas、Edward F. Webb、John J. Breton、Don E. Griswold
DOI:10.1021/jm960271d
日期:1996.1.1
A series of N-hydroxyurea derivatives have been prepared and examined as inhibitors of 5-lipoxygenase. Oral activity was established by examining the inhibition of LTB(4) biosynthesis in an ex vivo assay in the mouse. The pharmacodynamic performance in the mouse of selected compounds was assessed using an ex vivo LTB(4) assay and an adoptive peritoneal anaphylaxis assay at extended pretreat times. Compounds with an extended duration of action were reexamined as the individual enantiomers in the ex vivo assay, and the (S) enantiomer of N-hydroxy-N-[2,3-dihydro-6-(phenylmethoxy)-3-benzofuranyl]urea, (+)-1a (SE 202235), was selected as the compound with the best overall profile. Higher plasma concentrations and longer plasma half-lives were found for (+)-1a relative to its enantiomer in the mouse, monkey, and dog. In vitro metabolic studies in mouse liver microsomes established enantiospecific glucuronidation as a likely mechanism for the observed differences between the enantiomers of la. Enantioselective glucuronidation favoring (-)-1a was also found in human liver microsomes.