Sparteine-Mediated Asymmetric Nucleophilic Substitution at Prochiral, sp3-Hybridized Carbon
摘要:
2-Phenyl-1,3-dioxolanes (1) react with organolithium reagents (2), associated with (-)-sparteine, in the presence of BF3. OEt2 to afford chiral monosubstitution products 3, Enantioselectivity is highest if both 1 and 2 carry alkyl substituents in the ortho position. However, the enantioselectivity decreases in the case of very bulky substituents such as tert-butyl or phenyl.
Pharmaceutical Composition for Preventing and Treating Metabolic Bone Diseases Containing Alpha-Arylmethoxyacrylate Derivatives
申请人:Kim Bum Tae
公开号:US20080280901A1
公开(公告)日:2008-11-13
The present invention relates to a use of a specific alpha-arylmethoxyacrylate derivative, or its pharmacologically acceptable salt or solvate for preventing and treating metabolic bone diseases.
Pharmaceutical Composition For Preventing and Treating Metabolic Bone Diseases Containing Alpha-Arylmethoxyactylate Derivatives
申请人:KIM Bum Tae
公开号:US20100256367A1
公开(公告)日:2010-10-07
The present invention relates to a use of a specific alpha-arylmethoxyacrylate derivative, or its pharmacologically acceptable salt or solvate for preventing and treating metabolic bone diseases.