Ruthenium-Catalyzed Enantioselective Carbon−Carbon Bond Forming Reaction via Allenylidene-Ene Process: Synthetic Approach to Chiral Heterocycles Such As Chromane, Thiochromane, and 1,2,3,4-Tetrahydroquinoline Derivatives
Our previously disclosed ruthenium-catalyzed carbon-carbon bond formingreactions between propargylic alcohols and alkenes via an allenylidene-ene type pathway have been successfully applied to an enantioselective intramolecular cyclization for a variety of chiral heterocycles such as chromane, thiochromane, and 1,2,3,4-tetrahydroquinoline derivatives (up to 99% ee) by use of a suitable optically active
Short Synthesis of Chiral 4-Substituted (S)-Imidazolinium Salts Bearing Sulfonates and Their Use in γ-Selective Reactions of Allylic Halides with Grignard Reagents
作者:Christopher M. Latham、Alexander J. Blake、William Lewis、Matthew Lawrence、Simon Woodward
DOI:10.1002/ejoc.201101336
日期:2012.2
A one-potreaction of Boc-protected amino alcohols and 2-sulfobenzoic anhydride followed by the addition of a wide variety of primaryamines has allowed rapid access to diverse libraries of amidosulfonates 1,2-C6H4(SO3–)(COCHR1CH2NH2+R2) (R1 = Bn, iPr, Ph; R2 = aryl, CHMePh, 1-adamantyl), of which two examples have been characterised by X-ray crystallography. These reactions proceed by SN2 opening
Enantioselective Synthesis of All-Carbon Quaternary Stereogenic Centers via Copper-Catalyzed Asymmetric Allylic Alkylation of (<i>Z</i>)-Allyl Bromides with Organolithium Reagents
作者:Martín Fañanás-Mastral、Romina Vitale、Manuel Pérez、Ben L. Feringa
DOI:10.1002/chem.201406006
日期:2015.3.9
A copper/phosphoramidite catalyzed asymmetric allylic alkylation of Z trisubstituted allyl bromides with organolithium reagents is reported. The reaction affords all‐carbon quaternary stereogenic centers in high yields and very good regio‐ and enantioselectivity. This systematic study illustrates the crucial role of the olefin geometry of the allyl substrate on the outcome of the reaction and provides
Pharmaceutical Composition for the Treatment or Prevention of Diseases Involving Obesity, Diabetes, Metabolic Syndrome, Neuro-Degenerative Diseases and Mitochondria Dyfunction Diseases
申请人:Yoo Sang-Ku
公开号:US20080146655A1
公开(公告)日:2008-06-19
Provided is a pharmaceutical composition for the treatment and prevention of obesity, diabetes, metabolic syndromes, degenerative diseases and mitochondrial dysfunction-related diseases, comprising: a therapeutically effective amount of a compound represented by Formula I below, or a pharmaceutically acceptable salt, prodrug, solvate or isomer thereof, and a pharmaceutically acceptable carrier, a diluent or an excipient, or any combination thereof.
PHARMACEUTICAL COMPOSITION FOR THE TREATMENT OR PREVENTION OF DISEASES INVOLVING OBESITY, DIABETES, METABOLIC SYNDROME, NEURO-DEGENERATIVE DISEASES AND MITOCHONDRIA DYSFUNCTION DISEASES
申请人:Yoo Sang-Ku
公开号:US20090292011A1
公开(公告)日:2009-11-26
Provided is a pharmaceutical composition for the treatment and prevention of obesity, diabetes, metabolic syndromes, degenerative diseases and mitochondrial dysfunction-related diseases, comprising: a therapeutically effective amount of a compound represented by Formula I below, or a pharmaceutically acceptable salt, prodrug, solvate or isomer thereof, and a pharmaceutically acceptable carrier, a diluent or an excipient, or any combination thereof.