Dicationic 2-fluorenonylcarbapenems: Potent anti-MRS agents with improved solubility and pharmacokinetic properties
摘要:
The synthesis and biological evaluation of a series of dicationic-substituted 2-fluorenonylcarbapenems is described. This class of compounds showed enhanced water solubility while maintaining potent activity against MRS. Introduction of a beta 1--methyl substituent was found to improve pharmacokinetics. (C) 1999 Elsevier Science Ltd. All rights reserved.
N-Halogeno compounds part 17. Precursors of NF-TEDA reagents: quaternary salts of 1,4-diazabicyclooctane containing fluoro-anions, and their Lewis acid-Lewis base adducts with boron trifluoride, phosphorus pentafluoride and sulphur trioxide
作者:R.Eric Banks、Mohamed K. Besheesh、Suad N. Mohialdin-Khaffaf、Iqbal Sharif
DOI:10.1016/0022-1139(96)03395-7
日期:1996.5
Methods are described for the synthesis of 1-alkyl-4-aza-1-azoniabicyclo[2.2.2]octane salts [R+N(CH2CH2)3NX− (R = CH3, CH2Cl, C2H5, CF3CH2, n-C8H17; X− = CF3SO3−, BF4−, PF6−)] and of related 1:1 adducts Lewis acids [X− R+N(CH2CH2)3N+LA− (R = CH3, CH2Cl; X− = CF3SO3−, BF4−, PF6−; LA = BF3, PF5, SO3)] used in the development of site-selective electrophilic fluorinating agents of the 1-alkyl-4-fluoro-1
N-Halogeno compounds. Part 18. 1-Alkyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane salts: user-friendly site-selective electrophilic fluorinating agents of the N-fluoroammonium class
作者:R. Eric Banks、Mohamed K. Besheesh、Suad N. Mohialdin-Khaffaf、Iqbal Sharif
DOI:10.1039/p19960002069
日期:——
4-diazabicyclo[2.2.2]octane [R–+N(CH2CH2)3N X–] or their 1:1 adducts with boron trifluoride, phosphorus pentafluoride, or sulfur trioxide in acetonitrile at ca– 35 °C. The results of site-selective electrophilic fluorination of diethyl sodio(phenyl)malonate [→PhCF(CO2Et)2], 1-morpholinocyclohexene (→2-fluoro-cyclohexanone), phenol(→2-and 4-FC6H4OH), 1-and 2-hydroxynaphthalene (→2-and 4-FC10H6OH, and 1-FC10H6OH
Dicationic 2-fluorenonylcarbapenems: Potent anti-MRS agents with improved solubility and pharmacokinetic properties
作者:Mark L. Greenlee、Joanne B. Laub、Gregory P. Rouen、Frank DiNinno、Milton L. Hammond、Joann L. Huber、Jon G. Sundelof、Gail G. Hammond
DOI:10.1016/s0960-894x(99)00567-3
日期:1999.11
The synthesis and biological evaluation of a series of dicationic-substituted 2-fluorenonylcarbapenems is described. This class of compounds showed enhanced water solubility while maintaining potent activity against MRS. Introduction of a beta 1--methyl substituent was found to improve pharmacokinetics. (C) 1999 Elsevier Science Ltd. All rights reserved.
Fluorinated diazabicycloalkane derivatives
申请人:Air Products and Chemicals, Inc.
公开号:US05086178A1
公开(公告)日:1992-02-04
Fluorinated diazabicycloalkane derivative of the following Formula I: ##STR1## wherein n represents 0, 1 or 2; R represents a quaternizing organic group; each R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 independently represents hydrogen, C.sub.1 -C.sub.6 alkyl, aryl, C.sub.1 -C.sub.6 alkyl-substituted aryl or aryl-substituted C.sub.1 -C.sub.6 alkyl and each X.sup.- independently represents a conterion or 2X.sup.- represents a single divalent counterion, are electrophilic fluorinating agents.