Dl-hydroxy-alkyl-phenylamides having anticonvulsive activity
申请人:Meza Toledo Enrique Sergio
公开号:US20060287397A1
公开(公告)日:2006-12-21
New anticonvulsant compounds were synthesized and they include the compounds: DL-2-hydroxy-2-(3′,5′-bistrifluoromethylphenyl)butyramide, DL-2-hydroxy-2-(4′-trifluoromethylphenyl)butyramide, DL-2-hydroxy-2-(3′,4′-dichlorophenyl)butyramide, DL-2-hydroxy-2-(3′-bromophenyl)butyramide, DL-2-hydroxy-2-(4′-bromophenyl)butyramide, DL-2-hydroxy-2-(3′-nitrophenyl)butyramide, DL-3-hydroxy-3-(3′,4′-dichlorophenyl)pentanamide, DL-3-hydroxy-3-(4′-bromophenyl)pentanamide, DL-4-hydroxy-4-(3′,4′-dichlorophenyl) hexanamide and DL-4-hydroxy-4-(4′-bromophenyl)hexanamide. They have a significant anticonvulsant activity against pentylenetetrazol-induced seizures as well as unexpected differences in anticonvulsant activity respect those of the non-halogenated compounds. The invention further provides methods for the synthesis of the DL-hydroxy-alkyl-phenyl amides as exemplified in the examples.
A time-economical and robust synthesis of various selenofunctionalized heterocycles was accomplished via I2O5-mediated selenocyclizations of olefins with diselenides. Using this method, 116 selenomethyl-substituted heterocycles were synthesized with up to 97% isolated yield in minutes. Additional features of this new protocol include the use of an inorganic oxidant, mild conditions, and easy operation
通过I 2 O 5介导的烯烃与二硒化物的硒环化,实现了各种硒官能化杂环的经济且稳健的合成。使用这种方法,在几分钟内合成了 116 个硒甲基取代的杂环,分离产率高达 97%。这个新协议的其他特点包括使用无机氧化剂、温和的条件和易于操作。初步研究表明,这种转化是通过硒基碘诱导的亲电环化进行的。
Efficient synthesis of 16–28 membered macrocyclic crown amides via ring closing metathesis
作者:Yehia A Ibrahim、Haider Behbehani、Maher R Ibrahim、Rana N Malhas
DOI:10.1016/s0040-4020(03)01174-8
日期:2003.9
Ringclosingmetathesis of suitable diamides containing 1,ω-dienes led to efficient synthetic approaches towards macrocylic polyoxadiamides 1–18 with 16–28 membered ring sizes in good to excellent yields using Grubbs' catalyst.
Electrochemical Chalcogenation of
<i>β,γ</i>
‐Unsaturated Amides and Oximes to Corresponding Oxazolines and Isoxazolines
作者:Samrat Mallick、Mrinmay Baidya、Kingshuk Mahanty、Debabrata Maiti、Suman De Sarkar
DOI:10.1002/adsc.201901262
日期:2020.3.4
The current report represents a transition‐metal‐freesynthesis of oxazoline and isoxazoline derivatives by a tandem electro‐oxidative chalcogenation‐cyclization process. Both C−Se and C−S bond‐forming protocols were developed without using any external oxidant and the reaction was performed at roomtemperature, open to the air. Using this methodology, 29 substituted oxazoline and 16 substituted isoxazoline
Use Of Polyisobutenyl Succinic Anhydride-Based Block Copolymers In Cosmetic Preparations
申请人:Wendel Volker
公开号:US20080199420A1
公开(公告)日:2008-08-21
The invention relates to novel cosmetic preparations comprising an O/W emulsion, where the O/W emulsion comprises at least one amphiphilic polymer comprising one or more hydrophobic units A and one or more hydrophilic units B, where the hydrophobic units A are formed from polyisobutenes modified with terminal, polar groups, at least one component with an HLB value in the range from 8 to 20, and at least one oil and/or fat phase and water.