An Investigation of the Interaction of Co-Solvent with Substrates in the Pig Liver Esterase-Catalyzed Hydrolysis of Malonate Esters
作者:Maureen E. Smith、Michael P. C. Fibinger、Uwe T. Bornscheuer、Douglas S. Masterson
DOI:10.1002/cctc.201500597
日期:2015.10
Previously, we have reported the effect of several co‐solvents, including ethanol, on the enantioselective outcome of pig liveresterase (PLE) hydrolysis reactions. The greatest improvements were observed in those substrates that contained an atom capable of forming a hydrogen bond in the sidechain portion of the molecule. To further explore the interaction between substrate and ethanol, a second series
Novel crystal modifications of (5S)-5-[4-(5-chloro-pyridin-2-yloxy)-piperidine-1-sulfonylmethyl]-5-methyl-imidazolidine-2,4-dione are disclosed together with processes for preparing such modifications, pharmaceutical compositions comprising such a modification, and the use of such a modification in therapy.
Postcoordination oxidation by dioxygen of one of the thiolate groups in a pentadentate N(2)S(3) ligand results in an iron(III) complex with two N-carboxamido, two thiolato, and one O-sulfinato ligands (see the CAMERON representation). This novel mixed coordination is similar to that determined for the inactive form of the nitrile hydratase from Rhodococcus sp. N-771, but differs by the O versus S binding of the sulfinato ligand.
A NEW CRYSTALLINE FORM G OF (5S)-5-[4-(5-CHLORO-PYRIDIN-2-YLOXY)-PIPERIDINE-1-SULFONYL-METHYL]-5-METHYL-IMIDAZOLIDINE-2,4-DIONE (I) AND INTERMEDIATES THEREOF.