Project description:Schisanpropinoic acid (1), a new bergamotane sesquiterpenoid, and schisanpropinin (2), a new tetrahydrofuran lignan with a rare epoxyethane unit, were identified from the stems and leaves of Schisandra propinqua var. propinqua. Their structures were determined based on comprehensive spectroscopic and mass spectrometric analysis. The absolute configuration of 1 was determined by X-ray analysis. Compounds 1 and 2 were tested for their cytotoxic activity against five human tumor cell lines.
Project description:Four new tetrahydrofuran lignans, schpropinrins A-D (1–4), together with five known ones, were isolated from the leaves and stems of Schisandra propinqua var. sinensis. Their structures, including absolute configurations, were characterized by means of spectroscopic analysis and ECD calculation. Compounds 1–4 featured a ketal or hemiketal substructure at C-7 and all of the isolates were tested for their anti-HIV integrase activity. Electronic Supplementary Material Supplementary material is available for this article at 10.1007/s13659-013-0017-8 and is accessible for authorized users.
Project description:Transcription profiling of Citrus sinensis leaves following Xanthomonas citri subsp. citri wild type and LOV mutant treatment.<br><br>Samples taken 24 h after treatments were compared.