Efficient Syntheses of Oncinotine and Neooncinotine
摘要:
We have synthesized two natural alkaloids, oncinotine (1) and neooncinotine (2), by means of efficient ring-closing metathesis (RCM) reactions. The required dienes for RCM were assembled from three basic components: 2-allylpiperidine (5), 9-decenoic acid (6), and diamines 7. We developed two different methods to achieve the linkage: the Michael addition of acrylamide and two amidations of succinic anhydride. The Grubbs catalyst was used to form the 17- and 18-membered lactams in 50% and 68% yields, respectively.
Reversal Agent and Linker Variants of Reversed Chloroquines: Activities against Plasmodium falciparum
摘要:
We have shown that "reversed chloroquine molecules" constructed from chloroquine-like and resistance "reversal-agent"-like cores can be powerful drugs against malaria (J. Med. Chem. 2006, 49, 5623-5625). Several reversed chloroquines are now presented that probe parameters governing the activities against chloroquine-resistant and chloroquine-sensitive malaria strains. The design is tolerant to linker and reversal agent changes, but it piperazinyl group adjacent to the quinoline, at least for the group Of Compounds studied here, may be detrimental.
Reversal Agent and Linker Variants of Reversed Chloroquines: Activities against <i>Plasmodium falciparum</i>
作者:Simeon Andrews、Steven J. Burgess、Deborah Skaalrud、Jane Xu Kelly、David H. Peyton
DOI:10.1021/jm900972u
日期:2010.1.28
We have shown that "reversed chloroquine molecules" constructed from chloroquine-like and resistance "reversal-agent"-like cores can be powerful drugs against malaria (J. Med. Chem. 2006, 49, 5623-5625). Several reversed chloroquines are now presented that probe parameters governing the activities against chloroquine-resistant and chloroquine-sensitive malaria strains. The design is tolerant to linker and reversal agent changes, but it piperazinyl group adjacent to the quinoline, at least for the group Of Compounds studied here, may be detrimental.
Efficient Syntheses of Oncinotine and Neooncinotine
作者:Duen-Ren Hou、Hsiu-Yi Cheng、Eng-Chi Wang
DOI:10.1021/jo049526i
日期:2004.9.1
We have synthesized two natural alkaloids, oncinotine (1) and neooncinotine (2), by means of efficient ring-closing metathesis (RCM) reactions. The required dienes for RCM were assembled from three basic components: 2-allylpiperidine (5), 9-decenoic acid (6), and diamines 7. We developed two different methods to achieve the linkage: the Michael addition of acrylamide and two amidations of succinic anhydride. The Grubbs catalyst was used to form the 17- and 18-membered lactams in 50% and 68% yields, respectively.