Phenylaminopropanol derivatives and methods of their use
申请人:Kim Younghee Callain
公开号:US20050222148A1
公开(公告)日:2005-10-06
The present invention is directed to phenylaminopropanol derivatives of formula I:
or a pharmaceutically acceptable salt thereof, compositions containing these derivatives, and methods of their use for the prevention and treatment of conditions ameliorated by monoamine reuptake including, inter alia, vasomotor symptoms (VMS), sexual dysfunction, gastrointestinal and genitourinary disorders, chronic fatigue syndrome, fibromylagia syndrome, nervous system disorders, and combinations thereof, particularly those conditions selected from the group consisting of major depressive disorder, vasomotor symptoms, stress and urge urinary incontinence, fibromyalgia, pain, diabetic neuropathy, and combinations thereof.
Gleason-type chiralauxiliaries were used for the synthesis of a novel class of sulfonium salts, obtained via methylation of the sulfide with Meerwein's salt. The salts were reacted with aldehydes under basic conditions to provide epoxy amides, which were reduced to their corresponding epoxy alcohols in excellent enantiomeric excesses. Interestingly, it was feasible to synthesize both enantiomeric
A new type of chiral sulfur ylides has been synthesized and their reactivities against carbonyl compounds tested, showing a high degree of stereoselectivity in the formation of transepoxyamides under very mild reaction conditions.
Organocatalytic asymmetric epoxidation reactions in water–alcohol solutions
作者:Wei Zhuang、Mauro Marigo、Karl Anker Jørgensen
DOI:10.1039/b512542a
日期:——
enantioselective organocatalytic epoxidation of alpha,beta-unsaturated aldehydes in aqueous solutions is presented. By the screening of the reaction conditions for the epoxidation of cinnamic aldehyde applying hydrogen peroxide as the oxidant and 2-[bis-(3,5-bis-trifluoromethyl-phenyl)-trimethylsilanyloxy-methyl]-pyrrolidine as the catalyst, a highly stereoselective reaction has been developed. The scope
Asymmetric Epoxidation of α,β-Unsaturated Aldehydes in Aqueous Media Catalyzed by Resin-Supported Peptide- Containing Unnatural Amino Acids
作者:Kengo Akagawa、Kazuaki Kudo
DOI:10.1002/adsc.201000805
日期:2011.4.18
The enantio‐ and diastereoselective epoxidation of α,β‐unsaturated aldehydes in aqueousmedia was realized using a resin‐supported peptide catalyst. Introducing the hydrophobic and bulky unnaturalaminoacid 3‐(1‐pyrenyl)alanine into the peptide sequence was effective for enhancing the reaction rate and enantioselectivity.