Synthesis of three triterpene series and their activity against respiratory syncytial virus
作者:Gloria N. Santos da Silva、Diana Monti Atik、Jheini L. Antunes Fernandes、Deise de Freitas do Nascimento、Tiago Fazolo、Ana Paula Duarte de Souza、Simone C. Baggio Gnoatto
DOI:10.1002/ardp.201800108
日期:2018.8
without treatment were used as negative control. The triterpene esterification at the hydroxyl group resulted in 17 derivatives. The 3,28‐di‐O‐acetylbetulin derivative (1a) showed the best results for cell viability, and real‐time PCR amplification was performed for 1a treatment. Remarkably, one new anti‐hRSV prototype was obtained through an easy synthesis of BE, which shall represent an alternative for
Ursolic acid (UA) is a naturally occurring ursane triterpenoid, which exhibits a wide range of unique biological activities. To clarify its mechanism of action (MOA), a series of fluorescent derivatives of UA (–) were designed and synthesized by conjugation with 7-nitrobenzo-2-oxa-1,3-diazole (NBD) fluorophore. Among them, exhibited similar anti-proliferative activity with UA against HCT116 cells (half
Mitochondria-targeted betulinic and ursolic acid derivatives: synthesis and anticancer activity
作者:Darya A. Nedopekina、Rinat R. Gubaidullin、Victor N. Odinokov、Polina V. Maximchik、Boris Zhivotovsky、Yuriy P. Bel'skii、Veniamin A. Khazanov、Arina V. Manuylova、Vladimir Gogvadze、Anna Yu. Spivak
DOI:10.1039/c7md00248c
日期:——
compared to betulinicacid but were also markedly superior in triggering mitochondria-dependent apoptosis, as assessed using a range of apoptosis markers such as cytochrome c release, stimulation of caspase-3 activity, and cleavage of poly(ADP-ribose) polymerase, which is one of the targets of caspase 3. The IC50 was much lower for all triphenylphosphonium derivatives when compared to betulinicacid. Out