Pentaatomic heteroaromatic cations. 18. Acylation of pyrrole and N-methylpyrrole with 1,3-benzoxathiolium tetrafluoroborates. A high-yield method for the synthesis of diacylpyrroles
reported. Herein, we report the first fluorescentprobe NeutropG for the specific distinction and imaging of active neutrophils. The selective staining mechanism of NeutropG is elucidated as metabolism-oriented live-cell distinction (MOLD) through lipid droplet biogenesis with the help of ACSL and DGAT. Finally, NeutropG is applied to accurately quantify neutrophil levels in fresh blood samples by showing
Antimalarial Activity of Natural and Synthetic Prodiginines
作者:Kancharla Papireddy、Martin Smilkstein、Jane Xu Kelly、Shweta、Shaimaa M. Salem、Mamoun Alhamadsheh、Stuart W. Haynes、Gregory L. Challis、Kevin A. Reynolds
DOI:10.1021/jm200543y
日期:2011.8.11
Prodiginines are a family of linear and cyclic oligopyrrole red-pigmented compounds. Herein we describe the in vitro antimalarial activity of four natural (IC50 = 1.7–8.0 nM) and three sets of synthetic prodiginines against Plasmodium falciparum. Set 1 compounds replaced the terminal nonalkylated pyrrole ring of natural prodiginines and had diminished activity (IC50 > 2920 nM). Set 2 and set 3 prodiginines
Aroyl aminoacyl pyrroles for use in the treatment of neuropathic pain
申请人:——
公开号:US20010044452A1
公开(公告)日:2001-11-22
Aroyl aminoacyl pyrroles are pharmaceutically useful in treating neuropathic pain, which includes utility for the treatment of neuropathic pain.
Aroyl氨基酰基吡咯类化合物在治疗神经病性疼痛方面具有药用价值,包括用于神经病性疼痛的治疗。
New prodigiosin derivatives – chemoenzymatic synthesis and physiological evaluation against cisplatin-resistant cancer cells
作者:Tim Moritz Weber、Alexandra Leyens、Lena Berning、Björn Stork、Jörg Pietruszka
DOI:10.1039/d3cy00913k
日期:——
(cisplatin-sensitive) and RT-112res (cisplatin-resistant) to fathom the effect of electron-donating substituents on cytotoxicity. Alongside an overall broad acceptance of short- and medium-chain alkylated MBC derivatives by the enzymes PigC, TreaP, and TamQ, we identified the A-ring substituted prodiginines with methyl substituents as superior anticancer agents against cisplatin-resistant RT-112res after 72 h (15.7–18
灵菌红及其来自灵菌素家族的衍生物是一类天然的细菌来源的次生代谢生物碱。众所周知,它们对多种细菌、病原真菌、寄生虫和几种癌细胞系具有多种生物活性。天然衍生物的生物合成基于联吡咯前体 MBC 和各种取代的单吡咯之间最终 ATP 和酶依赖性缩合反应的聚合路线。尽管这些连接酶已被认为与单吡咯有关的混杂性,但仍进行了少量研究来调查 MBC 衍生物的混杂性。为了克服目前结构知识的缺乏,我们合成了六个 5′- nMBC 的 β-烷基衍生物,并通过连接酶 PigC、TreaP 和 TamQ 验证其与单吡咯缩合的适用性,以通过实验探测其活性位点。此外,对 A 环上具有5- n-烷基化的化学合成的 prodiginines 进行了系统的细胞活力筛选,其中包括尿路上皮癌细胞系 RT-112(顺铂敏感)和 RT-112 res(顺铂耐药),以了解供电子取代基对细胞毒性的影响。除了 PigC、TreaP 和 TamQ
Cadamuro, Silvano; Degani, Iacopo; Dughera, Stefano, Journal of the Chemical Society. Perkin transactions I, 1993, # 2, p. 273 - 284
作者:Cadamuro, Silvano、Degani, Iacopo、Dughera, Stefano、Fochi, Rita、Gatti, Antonella、Piscopo, Laura