A highly efficient iridium-catalyzedhydrogenation of alpha,beta-unsaturated carboxylic acids has been developed by using chiral spiro-phosphino-oxazoline ligands, affording alpha-substituted chiral carboxylic acids in exceptionally high enantioselectivities and reactivities.
A FACILE SYNTHESIS OF 2-BENZYLOXY/2-(4-ISOPROPYLBENZYLOXY)-2-METHYL-3-(4-SUBSTITUTED PHENYL)PROPANOIC ACID BASED INSULIN SNESITIZING AGENTS: RSR13-15 AND PKR13-15
作者:Raman K. Verma、Rubina Singla、V.T. Punniyakoti
DOI:10.1007/s00044-004-0109-4
日期:2004.10
alkaline hydrolysis of the ethyl esters. The substituted propanoic acids used in this synthetic sequence were prepared by magnesium-methanol reduction of correspondingly substituted propenoic acids, which in turn were prepared via 'Perkin Reaction' of 4-substitued benzaldehydes with propanoic anhydride. The details of the synthetic sequence followed for the preparation of all these compounds having almost
This invention is directed to oxoazaheterocycyl compounds which inhibit Factor Xa, to oxoazaheterocycyl compounds which inhibit both Factor Xa and Factor IIa, to pharmaceutical compositions comprising these compounds, to intermediates useful for preparing these compounds, to a method of directly inhibiting Factor Xa and to a method of simultaneously directly inhibiting Factor Xa and Factor IIa..
state by IR for all complexes and for 1 by X-ray single crystal analysis. The NMR study has shown a decrease in the coordination number of tin in solution. The complexes were screened for their in vitro antibacterial and antifungal activities. A compromised lipo/hydrophilicity and a diffusion controlled antimicrobial activity was shown by the complexes in the order 1 > 2>3 > 4. Molecular docking studies