The crystal structure has been determined to establish the absolute configuration of the parent compound by introducing a chiral auxiliary of known structure.关键词: crystal morphology solvothermal crystal growth nanomaterials DOI: 10.1107/S1600536804030946 被引量: 3 ...
Application of chiral nitrogen-containing ligands in asymmetric addition to imines with organolithium reagents; 手性含氮配体在有机锂试剂对亚胺不对称加成反应中的应用进展 3. Effect of Microwave Irradiation on the Syn/Trans Selectivity in the Formation of β-Lactams From Ketenes andImines; ...
The title compound, C25H34O6, crystallizes in the orthorhombic space group P212121. The crystal structure has been determined to establish the absolute configuration of the parent compound by introducing a chiral auxiliary of known structure....
ChemInform Abstract: Asymmetric Synthesis of (3R,5R)and (3S,5S)6〥imethylheptane5diol, Useful C2 Chiral Auxiliariesalcohols (acyclic compounds)stereochemistry (general, optical resolution)ChemInform is a weeklying Service, delivering concise information at a glance that was extracted from about 100 ...
are trans-2,3-bis(diphenylphosphinomethyl)bicyclo-/2.2.1/heptane of formula (I):- and its chiral enantiomers. Also new are chiral catalysts consisting of the reaction prod. of a chiral enantiomer of (I) with Rh(COD)X 2 (where X is Cl, Br or I; and COD signifies cyclooctadiene). In...
A series of racemic 7-methyl-2-(5-(pyridinyl)pyridin-3-yl)-7-azabicyclo[2.2.1]heptane derivatives with pM in vitro binding affinity at nAChR synth and enantiomer were resolved by semiprep chiral support HPLC. The (-)-enantiomers showed substantially greater in vitro inhibition binding affinity...
[4.1.0]heptane skeleton, and their salts in optically active form by an asymmetric gold-catalyzed cycloisomerization, comprises converting enyne compounds (II) to substituted (3-azabicyclo[4.1.0]hept-4-en-1-yl)-methanol derivatives (III) in presence of chiral gold complexes (IV) or chiral ...
[4.1.0]heptane skeleton, and their salts in optically active form by an asymmetric gold-catalyzed cycloisomerization, comprises converting enyne compounds (II) to substituted (3-azabicyclo[4.1.0]hept-4-en-1-yl)-methanol derivatives (III) in presence of chiral gold complexes (IV) or chiral ...
A simple and efficient synthesis of nAChR antagonist (±)-7-methyl-2-exo-(3′-iodo-5′-pyridinyl)-7-azabicyclo[2.2.1]-heptane ((±)-NMI-EPB) has been developed. Both enantiomers of (±)-NMI-EPB were separated by semi-preparative chiral HPLC. The enantiomers manifested a substantial ...