2812-31-9Relevant articles and documents
Jubanines F-J, cyclopeptide alkaloids from the roots of Ziziphus jujuba
Kang, Kyo Bin,Ming, Gao,Kim, Geum Jin,Ha, Thi-Kim-Quy,Choi, Hyukjae,Oh, Won Keun,Sung, Sang Hyun
, p. 90 - 95 (2016/03/04)
Five Ib-type cyclopeptide alkaloids, jubanines F-J (1-5), and three known compounds, nummularine B (6), daechuine-S3 (7), and mucronine K (8) were isolated from the roots of Ziziphus jujuba. Their structures were fully characterized by spectroscopic analyses in combination with chemical derivatization. Compounds 1-3, and 6 were evaluated for their antiviral activity against the porcine epidemic diarrhea virus (PEDV). Compounds 2, 3, and 6 showed potent inhibitory effects on PEDV replication.
Foxo3a Inhibitors of Microbial Origin, JBIR-141 and JBIR-142
Kawahara, Teppei,Kagaya, Noritaka,Masuda, Yuichi,Doi, Takayuki,Izumikawa, Miho,Ohta, Kumiko,Hirao, Atsushi,Shin-Ya, Kazuo
supporting information, p. 5476 - 5479 (2015/11/18)
JBIR-141 (1) and JBIR-142 (2) were discovered as potent Foxo3a inhibitors that consist of three quite unique substructures, a 1-((dimethylamino)ethyl)-5-methyl-4,5-dihydrooxazole-4-carboxylic acid that is originated from Ala-Thr amino acid residues, a 3-acetoxy-4-amino-7-(hydroxy(nitroso)amino)-2,2-dimethylheptanoic acid, and an α-acyl tetramic acid fused with a 2-methylpropan-1-ol moiety. Their structures involving absolute configurations were determined by spectroscopic data, chemical degradation, anisotropy methods, and LC-MS analyses of diastereomeric derivatives. Compounds 1 and 2 exhibited specific inhibition against Foxo3a transcriptional activity with IC50 values of 23.1 and 166.2 nM, respectively.
Cyclopeptide alkaloids of Zizyphus xylopyra
Rai, Nisha,Singh, Sarita,Singh,Pandey
experimental part, p. 336 - 337 (2009/06/25)
14-Membered cyclopeptide alkaloids, franganine, frangufoline, amphibine-D and mauritine-A has been isolated from the whole plant of Zizyphus xylopyra and their structures established by spectral evidences. This is the first report of these alkaloids from Z. xylopyra.