New Benzocycloalkylpiperazines, Potent and Selective 5-HT1A Receptor Ligands
摘要:
A series of 1-(benzocycloalkyl)-4-(benzamidoalkyl)piperazine derivatives was prepared in order to obtain compounds with a high affinity and selectivity for 5-HT1A receptors. The modifications of aromatic substituents, the length of the alkyl chain, and the size of the ring were explored. Most of N-(1,2,3,4-tetrahydronaphthyl)-N'-(benzamidoethyl)piperazines (32-37) were bound to 5-HT1A receptors in a nanomolar range and presented a high degree of selectivity. After resolution, levorotatory enantiomers showed affinity and selectivity higher than those of dextrorotatory ones for 5-HT1A sites. The agonist type activity of selected derivatives was also confirmed in vitro on the inhibition of the activation of adenylate cyclase induced by forskolin and, in vivo, on the induction of the lower lip retraction in rats.
Silica Chloride (SiO<sub>2</sub>-Cl), a New Heterogeneous Reagent, for the Selective and Efficient Conversion of Benzylic Alcohols to Their Corresponding Chlorides and Iodides
Abstract Structurally different benzylic alcohols were efficiently converted to their corresponding chlorides by silica chloride (SiO2-Cl) in CHCl3 at room temperature. Silica chloride is also able to convert benzylic alcohols to their iodides in the presence of NaI in a mixture of CH3CN/CHCl3 in excellent yields.
摘要 在室温下,在 CHCl3 中的氯化硅 (SiO2-Cl) 可以将结构不同的苄醇有效地转化为其相应的氯化物。在 NaI 存在下,在 CH3CN/CHCl3 混合物中,氯化硅也能够以极好的收率将苄醇转化为其碘化物。
Directing group: A Pd‐catalyzed aromaticCHoxygenation has been developed, featuring a modifiable silanol‐directing group. The resulting oxasilacycles can be efficiently modified into a variety of valuable building blocks (see scheme).
导向基团:已开发出Pd 催化的芳香族 C → H 氧化反应,具有可修饰的硅烷醇导向基团。所得的草硅环可以有效地修饰成各种有价值的结构单元(参见方案)。
Enantioselective Electroreductive Coupling of Alkenyl and Benzyl Halides via Nickel Catalysis
作者:Travis J. DeLano、Sarah E. Reisman
DOI:10.1021/acscatal.9b01785
日期:2019.8.2
An electrochemically-driven enantioselective nickel-catalyzed reductive cross-coupling of alkenyl bromides and benzylchlorides is reported. The reaction forms products bearing allylic stereogenic centers with good enantioselectivity under mild conditions in an undivided cell. Electrochemical activation and turnover of the catalyst mitigate issues posed by metal powder reductants. This report demonstrates
[EN] TRICYCLIC FARNESYL PROTEIN TRANSFERASE INHIBITORS<br/>[FR] INHIBITEURS DE LA FARNESYL PROTEINE TRANSFERASE TRYCICLIQUE
申请人:SCHERING CORP
公开号:WO2000037459A1
公开(公告)日:2000-06-29
Disclosed are compounds of formula (1.0) wherein R13 represents an imidazole ring; R14 represents a carbamate, urea, amide or sulfonamide group; R8 represents H when the alkyl chain between the amide group and the R13 imidazole group is substituted, or R8 represents a substituent such aa arylalkyl, heteroarylalkyl or cycloalkyl; and the remaining substituents are as defined herein. Also disclosed are compounds wherein R8 is H, and the alkyl chain between the amide group and the R13 imidazole group is unsubstituted. Also disclosed is a method of treating cancer and a method of inhibiting farnesyl protein transferase using the disclosed compounds.