67057-68-5Relevant articles and documents
Effect of Partially Fluorinated N-Alkyl-Substituted Piperidine-2-carboxamides on Pharmacologically Relevant Properties
Vorberg, Raffael,Trapp, Nils,Zimmerli, Daniel,Wagner, Bj?rn,Fischer, Holger,Kratochwil, Nicole A.,Kansy, Manfred,Carreira, Erick M.,Müller, Klaus
, p. 2216 - 2239 (2016/10/19)
The modulation of pharmacologically relevant properties of N-alkyl-piperidine-2-carboxamides was studied by selective introduction of 1–3 fluorine atoms into the n-propyl and n-butyl side chains of the local anesthetics ropivacaine and levobupivacaine. The basicity modulation by nearby fluorine substituents is essentially additive and exhibits an exponential attenuation as a function of topological distance between fluorine and the basic center. The intrinsic lipophilicity of the neutral piperidine derivatives displays the characteristic response noted for partially fluorinated alkyl groups attached to neutral heteroaryl systems. However, basicity decrease by nearby fluorine substituents affects lipophilicities at neutral pH, so that all partially fluorinated derivatives are of similar or higher lipophilicity than their non-fluorinated parents. Aqueous solubilities were found to correlate inversely with lipophilicity with a significant contribution from crystal packing energies, as indicated by variations in melting point temperatures. All fluorinated derivatives were found to be somewhat more readily oxidized in human liver microsomes, the rates of degradation correlating with increasing lipophilicity. Because the piperidine-2-carboxamide core is chiral, pairs with enantiomeric N-alkyl groups are diastereomeric. While little response to such stereoisomerism was observed for basicity or lipophilicity, more pronounced variations were observed for melting point temperatures and oxidative degradation.
An inhibitor of glutathione S-transferase omega 1 that selectively targets apoptotic cells
Pace, Nicholas J.,Pimental, Daniel R.,Weerapana, Eranthie
supporting information; experimental part, p. 8365 - 8368 (2012/09/25)
On (cell) suicide watch: The increased permeability of apoptotic cells was used to identify a peptide-based, covalent inhibitor (NJP2) for glutathione S-transferase omega (GSTO1) that is highly selective for apoptotic cells, with no inhibition of healthy
Total synthesis of macquarimicins using an intramolecular Diels-Alder approach inspired by a biosynthetic pathway
Munakata, Ryosuke,Katakai, Hironori,Ueki, Tatsuo,Kurosaka, Jun,Takao, Ken-Ichi,Tadano, Kin-Ichi
, p. 11254 - 11267 (2007/10/03)
A total synthesis of the macquarimicins A-C (1-3), novel natural products with intriguing tetra- or pentacyclic frameworks, has been achieved. The synthesis features an extensive investigation of the biosynthesis-based intramolecular Diels-Alder (IMDA) re
