78521-64-9Relevant academic research and scientific papers
Tertiary enamide-promoted diastereoselective domino: N-acyliminium ion trapping and nazarov cyclization
Zheng, Yongxiang,Andna, Lucile,Bistri, Olivia,Miesch, Laurence
supporting information, p. 6771 - 6775 (2020/09/15)
N-Acyliminium ions generated from enamidyl vinyl ketones provided cyclopentenoid-fused diazepines diastereoselectively using BF3·Et2O in one pot through a domino N-acyliminium ion trapping/Nazarov reaction, simultaneously generating three new stereogenic centers. The particular structural design of the cross-conjugated dienone dictates the torquoselectivity observed in this polarized Nazarov reaction. Various N-bridgehead polycyclic scaffolds of putative pharmacological interest were obtained. Cyclic voltammetry was used to support the preferred reaction sequence within this domino reaction.
Trapping of N-Acyliminium Ions with Enamides: An Approach to Medium-Sized Diaza-Heterocycles
Andna, Lucile,Miesch, Laurence
supporting information, p. 3430 - 3433 (2018/06/11)
Enamides equipped with N-acyliminium ion precursors were obtained through reduction of ynamides tethered to N-imides. Intramolecular TMSOTf-mediated trapping of N-acyliminium ions provided a variety of polyfunctionalized medium-sized diaza-heterocycles of putative pharmacological interest.
A novel synthesis of the macrocyclic spermidine alkaloid (+)-(S)-dihydroperiphylline
Sergeyev, Sergey A.,Hesse, Manfred
, p. 161 - 167 (2007/10/03)
A novel, short, and highly stereoselective synthesis of the macrocyclic spermidine alkaloid (+)-(S)-dihydroperiphylline (15) is described. The key synthetic steps were the stereoselective addition of the chiral amine 1 to the cinnamate 2 and cyclization o
Investigations on New Strategies for the Facile Synthesis of Polyfunctionalized Phosphinates: Phosphinopeptide Analogues of Glutathionylspermidine
Chen, Shoujun,Coward, James K.
, p. 502 - 509 (2007/10/03)
Three possible methods for the facile synthesis of functionalized phosphinates, including the core of complex phosphinopeptide analogues of glutathionylspermidine, were explored. Among these methods, the three-component condensation reaction involving ben
Synthesis of Polyamine-Carbodiimides. - Potential Activators for Chemical Ligations of Oligodeoxynucleotide 3'-Phosphates
Kiedrowski, Guenter von,Doerwald, Florencio Zaragoza
, p. 787 - 794 (2007/10/02)
Polyamine-Carbodiimides are new water-soluble activating agents designed to fit some requirements of chemical ligations of oligodeoxynucleotide 3'-phosphates.N-Alkyl-N'-(4,9,13-trimethyl-4,9,13-triazatetradecyl)carbodiimides 9 have been prepared from 4,9,
