Results 21 to 30 of about 167,233 (404)
Ipertrofan Revisited—The Proposal of the Complete Stereochemistry of Mepartricin A and B
Being a methyl ester of partricin, the mepartricin complex is the active substance of a drug called Ipertrofan (Tricandil), which was proven to be useful in treatment of benign prostatic hyperplasia and chronic nonbacterial prostatitis/chronic pelvic ...
Paweł Szczeblewski+5 more
doaj +1 more source
Mannich base-connected syntheses mediated by ortho-quinone methides
This article provides an overview about specifically modified Mannich reactions where the process involves an ortho-quinone methide (o-QM) intermediate.
Petra Barta+2 more
doaj +1 more source
Contribution of the Chemistry Institutes to the Early Development of Stereochemistry
This article is a translation from German of a paper submitted by Kurt Hermann to the University of Zurich Prize committee in 1968, with additional editing by Jay Siegel.
Kurt Hermann
doaj +1 more source
PF74 is a capsid-targeting inhibitor of HIV replication that effectively perturbs the highly sensitive viral uncoating process. A lack of information regarding the optical purity (enantiomeric excess) of the single stereogenic centre of PF74 has resulted
Stuart Ruddell+5 more
doaj +1 more source
Nucleophilic substitution vs elimination reaction of bisulfide ions with substituted methanes: exploration of chiral selectivity by stereodirectional first-principles dynamics and transition state theory [PDF]
Control of molecular orientation is emerging as crucial for the characterization of the stereodynamics of kinetics processes beyond structural stereochemistry. The special role played in chiral discrimination phenomena has been particularly emphasized by the authors after their extensive probes of experimental control of molecular alignment and ...
arxiv +1 more source
Modifying the stereochemistry of an enzyme-catalyzed reaction by directed evolution [PDF]
Aldolases have potential as tools for the synthesis of stereochemically complex carbohydrates. Here, we show that directed evolution can be used to alter the stereochemical course of the reaction catalyzed by tagatose-1,6-bisphosphate aldolase.
A. Berry+27 more
core +2 more sources
Chiral Discrimination in Helicity-Preserving Fabry-Pérot Cavities [PDF]
We theoretically study circular dichroism of chiral molecules embedded inside a helicity-preserving Fabry-P\'erot cavity. We find an increase of the intrinsic chiroptical response of the molecules by 2 orders of magnitude and report the first clear signature of chiral cavity polaritons upon entering the regime of strong light-matter coupling.
arxiv +1 more source
Stereo-Aware Extension of HOSE Codes [PDF]
The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link.Descriptions of molecular environments have many applications in chemoinformatics, including chemical shift
Johnson, Sean R., Kuhn, Stefan
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The Stereochemistry of Ketoreduction [PDF]
In this issue of Chemistry & Biology, Leadlay and coworkers report overproduction of a number of ketoreductase domains from modular polyketide synthases. These discrete enzymes allow the stereochemistry of polyketide ketoreduction to be studied in isolation.
openaire +3 more sources