Whole cell catalysed kinetic resolution of 6-azabicyclo[3.2.0]hept-3-en-7-one: synthesis of (–)-cispentacin (FR 109615)
摘要:
Enantioselective hydrolysis of the beta-lactam (+/-)-2 using Rhodococcus equi provided (1R,5S)-6-azabicyclo[3.2.0]hept-3-en-7-one (+)-2, a precursor of the antifungal agent cispentacin.
The present disclosure relates to systems and methods for determining the renal glomerular filtration rate or assessing the renal function in a patient in need thereof. The method includes administering a pyrazine compound of Formula I to a patient and monitoring the rate in which the kidneys of the patient eliminate the pyrazine from the systemic circulation of the patient. The pyrazine compound fluoresces when exposed to electromagnetic radiation which is detected using one or more sensors. The rate in which the fluorescence decreases in the patient is used to calculate the renal glomerular filtration rate in the patient.
COMPOSITIONS AND SYSTEMS FOR RENAL FUNCTION DETERMINATION
申请人:MediBeacon Inc.
公开号:US20190125901A1
公开(公告)日:2019-05-02
The present disclosure relates to systems and methods for determining the renal glomerular filtration rate or assessing the renal function in a patient in need thereof. The system includes a computing device, a power supply, one or more sensors, and at least one tracer agent that fluoresces when exposed to electromagnetic radiation. The electromagnetic radiation is detected using the sensors, and the rate in which the fluorescence decreases in the patient is used to calculate the renal glomerular filtration rate in the patient.
High-Performance Liquid Chromatographic Enantioseparation of Cyclic <i>β</i>
-Amino Acids on Zwitterionic Chiral Stationary Phases Based on <i>Cinchona</i>
Alkaloids
作者:István Ilisz、Zsanett Gecse、Gyula Lajkó、Enikõ Forró、Ferenc Fülöp、Wolfgang Lindner、Antal Péter
DOI:10.1002/chir.22458
日期:2015.9
Stereoselective high‐performance liquidchromatographic separations of eight sterically constrained cyclicβ‐amino acid enantiomer pairs were carried out using the newly developed Cinchonaalkaloid‐basedzwitterionicchiralstationaryphases Chiralpak ZWIX(+) and ZWIX(−). The effects of the mobile phase composition, the nature and concentrations of the acid and base additives, the counterions and temperature
A De Novo Stereocontrolled Approach to<i>syn</i>- and<i>anti</i>-Disubstituted Acyclic β<sup>2,3</sup>-Amino Acid Enantiomers
作者:Maria Cherepanova、Loránd Kiss、Enikő Forró、Ferenc Fülöp
DOI:10.1002/ejoc.201301281
日期:2014.1
aminocyclopent-3-enecarboxylates, which were derived from a racemic bicyclic β-lactam. The synthetic strategy involves the stereoselective dihydroxylaton of the C–C doublebond of the cyclopentene β-amino esters. The subsequent NaIO4-mediated ring cleavage affords dialdehyde intermediates that undergo functionalization by a Wittig reaction.
METHOD FOR PREPARING AND ANALYZING FLUORESCENT COMPOUNDS IN PLASMA
申请人:MediBeacon, Inc.
公开号:US20190154697A1
公开(公告)日:2019-05-23
Disclosed herein is a method for analyzing the concentration of a fluorescent compound in the plasma of a patient. The method includes collecting a sample of plasma from a patient, diluting the sample with a solvent and analyzing the diluted sample by HPLC. The sample does not need to be dried down during sample preparation nor is an internal standard required.