M. H. Ke, M. J. Cheng, C. L. Kao, W. J. Li, S. T. Huang, H. T. Li, C. Y. Chen
{"title":"Ionones from Seeds of Chaenomeles sinensis","authors":"M. H. Ke, M. J. Cheng, C. L. Kao, W. J. Li, S. T. Huang, H. T. Li, C. Y. Chen","doi":"10.1007/s10600-026-05044-7","DOIUrl":"10.1007/s10600-026-05044-7","url":null,"abstract":"<p>A new dimeric ionone, chaenol (<b>1</b>), was isolated from the seeds of <i>Chaenomeles sinensis</i>. Its structure was elucidated using spectroscopic methods, including 1D and 2D NMR and HR-ESI-MS. Comparison with known monomeric ionones, including dehydrovomifoliol, confirmed its dimeric nature. Additional compounds isolated include dehydrovomifoliol, lariciresinol, and its dimethoxy analogs.</p>","PeriodicalId":514,"journal":{"name":"Chemistry of Natural Compounds","volume":"62 4","pages":"687 - 689"},"PeriodicalIF":1.1,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. E. Dusmatova, K. K. Turgunov, R. F. Mukhamatkhanova, R. Ya. Okmanov, I. D. Sham′yanov, B. Tashkhodzhaev
{"title":"Amino-derivatives of Sesquiterpene Lactone Igalan","authors":"D. E. Dusmatova, K. K. Turgunov, R. F. Mukhamatkhanova, R. Ya. Okmanov, I. D. Sham′yanov, B. Tashkhodzhaev","doi":"10.1007/s10600-026-05053-6","DOIUrl":"10.1007/s10600-026-05053-6","url":null,"abstract":"<p>New amino-derivatives of the sesquiterpene lactone igalan were obtained via Michael addition reactions with nucleophilic reagents such as diethylamine, piperidine, morpholine, cytisine, and piperazine. The structures of the obtained derivatives were proved using <sup>1</sup>H and <sup>13</sup>C NMR methods and X-ray crystal structure analyses. The <i>cis</i>-fusion of the lactone ring to the igalan six-membered ring sterically favored reduction of the C11=C13 double bond of the <i>γ</i>-lactone ring in the <i>α</i>-direction and led to formation of 13<i>α</i>-substituted 11,13-dihydro derivatives of the lactone igalan.</p>","PeriodicalId":514,"journal":{"name":"Chemistry of Natural Compounds","volume":"62 4","pages":"727 - 732"},"PeriodicalIF":1.1,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. H. Yang, S. T. Huang, M. J. Cheng, W. J. Li, C. Y. Chen, H. T. Li
{"title":"A New Oxetanone of Kalanchoe beharensis","authors":"C. H. Yang, S. T. Huang, M. J. Cheng, W. J. Li, C. Y. Chen, H. T. Li","doi":"10.1007/s10600-026-05045-6","DOIUrl":"10.1007/s10600-026-05045-6","url":null,"abstract":"<p>A new 2-oxetanone, 4-methoxy-2-oxetanone (<b>1</b>), along with five known compounds including o-hydroxybenzoic acid (<b>2</b>), <i>p</i>-hydroxybenzoic acid (<b>3</b>), <i>p</i>-hydroxybenzaldehyde (<b>4</b>), vanillin (<b>5</b>), and isovanillin (<b>6</b>), were isolated from the roots of <i>Kalanchoe beharensis</i> (Crassulaceae). The structure of the new <i>β</i>-lactone derivative was elucidated by physical evidence.</p>","PeriodicalId":514,"journal":{"name":"Chemistry of Natural Compounds","volume":"62 4","pages":"690 - 692"},"PeriodicalIF":1.1,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yuexun Luo, Donglin Liu, Meng Ren, Tianxiang Zhang, Jun Zhang, Fang Wang, Guoqiang Zhang, Dan Ma, Duqiang Luo
{"title":"Cytotoxic Cyclopeptides from Desert-Derived Endophytic Fungus Fusarium sp. HM14","authors":"Yuexun Luo, Donglin Liu, Meng Ren, Tianxiang Zhang, Jun Zhang, Fang Wang, Guoqiang Zhang, Dan Ma, Duqiang Luo","doi":"10.1007/s10600-026-05062-5","DOIUrl":"10.1007/s10600-026-05062-5","url":null,"abstract":"<p>Chemical investigation of <i>Fusarium</i> sp. HM14 led to the isolation of five cyclodepsipeptides (<b>1–5</b>), with compound <b>1</b> being undescribed. Their structures were elucidated via HR-ESI-MS, 1D, 2D NMR, and literature comparison; the absolute configuration of compound <b>1</b> was determined using Marfey’s method. Compounds <b>1–5</b> displayed cytotoxic activity to varying extents against both MCF-7 and MGC-803 cells, with IC<sub>50</sub> values within the range 3.04–80.57 μg·mL<sup>–1</sup>.</p>","PeriodicalId":514,"journal":{"name":"Chemistry of Natural Compounds","volume":"62 4","pages":"783 - 787"},"PeriodicalIF":1.1,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cytotoxic Crinane Alkaloids from the Bulbs of Crinum asiaticum","authors":"Yanyong Qiao, Xiaoqing Wang, Hai Xing","doi":"10.1007/s10600-026-05060-7","DOIUrl":"10.1007/s10600-026-05060-7","url":null,"abstract":"<p>A chemical investigation on the 95% ethanol extract of the bulbs of <i>Crinum asiaticum</i> L. resulted in the isolation of two previously undescribed crinane alkaloids, designated as crinumasiatines A and B (<b>1</b> and <b>2</b>), together with two known compounds 6′-hydroxyundulatine and 6′-hydroxybuphanidrine. Structural elucidation of all the compounds were performed by spectral methods such as 1D and 2D (<sup>1</sup>H–<sup>1</sup>H COSY, HMQC, and HMBC) NMR spectroscopy and high-resolution mass spectrometry. The isolated alkaloids were tested <i>in vitro</i> for cytotoxic activities against four pancreatic tumor cell lines. As a result, <b>2</b> exhibited some cytotoxic activities against all the tested tumor cell lines with IC<sub>50</sub> values less than 20 μM.</p>","PeriodicalId":514,"journal":{"name":"Chemistry of Natural Compounds","volume":"62 4","pages":"767 - 771"},"PeriodicalIF":1.1,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jia-Wei Pan, Kai-Bo Chem, Jiang-Mei Wu, Hong Xu, Rui-Ze Chen, Hai Hu, Wen-Min Liu, Yan Zheng, Rong-Rui Wei, Qin-Ge Ma
{"title":"Structurally Diverse Analgesic Phenylpropanoid Glycosides from Stauntonia chinensis","authors":"Jia-Wei Pan, Kai-Bo Chem, Jiang-Mei Wu, Hong Xu, Rui-Ze Chen, Hai Hu, Wen-Min Liu, Yan Zheng, Rong-Rui Wei, Qin-Ge Ma","doi":"10.1007/s10600-026-05050-9","DOIUrl":"10.1007/s10600-026-05050-9","url":null,"abstract":"<p>A new phenylpropanoid glycoside, named (7<i>E</i>)-3,3′′-dimethoxy-4,4′′-dihydroxy-1′-phenylethanol-4′-acrylophenone-3′-rhamnose-(6′→1′′′)-rutinosyl-phenylpropanoid (<b>1</b>), together with five known phenylpropanoid glycoside derivatives (<b>2–6</b>), were isolated from <i>Stauntonia chinensis</i> DC. for the first time. The structures of these compounds were elucidated by extensive spectroscopic analyses (UV, IR, MS, NMR) and related references. The analgesic activities of compounds (<b>1–6</b>) were assayed with CH<sub>3</sub>COOH-induced writhing model in mice. Compounds <b>1</b> and <b>2</b> exhibited writhing inhibitions of 34% (50 mg/kg), 39% (100 mg/kg), 45% (200 mg/kg), and 25% (50 mg/kg), 29% (100 mg/kg), 33% (200 mg/kg), respectively, as compared to the reference drug aspirin (56%) at a dose of 200 mg/kg.</p>","PeriodicalId":514,"journal":{"name":"Chemistry of Natural Compounds","volume":"62 4","pages":"709 - 713"},"PeriodicalIF":1.1,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Anticancer Activity of Metabolites of Coix lachrymal-jobi and Its Effect on Growth Inhibition in Cancer Cells","authors":"Der-An Tsao, Jia-Ci Shen, Pei-Ting Hung, Chung-Yi Chen","doi":"10.1007/s10600-026-05058-1","DOIUrl":"10.1007/s10600-026-05058-1","url":null,"abstract":"<p>A new pyridine, coixlachjobine (<b>1</b>) and sixteen known compounds (<b>2–17</b>) were isolated from the hulls of <i>Coix lachryma-jobi</i> L. (Gramineae). The structure of the new pyridine was elucidated by chemical and physical evidence. We used the MTT method to understand whether <i>Coix lachryma-jobi</i> L. compounds <b>1–17</b> have the effect of inhibiting the growth of ovarian and lung cancer cells. The results show that different purified compounds exhibited specific effects on different cancers. We expect that long-term treatment using these compounds will show a strong inhibitory effect on cancer growth in the future.</p>","PeriodicalId":514,"journal":{"name":"Chemistry of Natural Compounds","volume":"62 4","pages":"758 - 761"},"PeriodicalIF":1.1,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. Y. Chen, M. J. Cheng, S. T. Huang, S. L. Liu, H. T. Li
{"title":"A New Alkaloid of Oryza sativa","authors":"C. Y. Chen, M. J. Cheng, S. T. Huang, S. L. Liu, H. T. Li","doi":"10.1007/s10600-026-05059-0","DOIUrl":"10.1007/s10600-026-05059-0","url":null,"abstract":"<p>A new alkaloid, 2-(hydroxymethyl)pyridin-5-ol (<b>1</b>) and 12 known compounds (<b>2–13</b>) were isolated from the aerial part of <i>Oryza sativa</i> L. (Gramineae). The structure of the new pyridine was elucidated by chemical and physical evidence. All the compounds were tested by DPPH free radical scavenging assay, metal ions chelating ability, and reducing power test to evaluate their antioxidant properties. We found 13<sup>2</sup>-hydroxy-(13<sup>2</sup>-<i>S</i>)-pheophytin a (<b>12</b>) and aristophyll-C (<b>13</b>) presented middle antioxidative activity. In the metal ion chelation test, it is discovered that 13<sup>2</sup>-hydroxy-(13<sup>2</sup>-<i>S</i>)-pheophytin a (<b>12</b>) and aristophyll-C (<b>13</b>) indicated moderate ferrous ion chelating properties. Moreover, (+)-ketopinoresinol (<b>2</b>) presented a remarkable capacity in reducing power.</p>","PeriodicalId":514,"journal":{"name":"Chemistry of Natural Compounds","volume":"62 4","pages":"762 - 766"},"PeriodicalIF":1.1,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"GC-MS Characterization and Antioxidant Properties of Phyllanthus leprocarpus Wight from the Indian Himalayas","authors":"Jasneet Kour, Pratibha Sharma, Harcharan Singh Dhaliwal, Vivek Sharma","doi":"10.1007/s10600-026-05072-3","DOIUrl":"10.1007/s10600-026-05072-3","url":null,"abstract":"","PeriodicalId":514,"journal":{"name":"Chemistry of Natural Compounds","volume":"62 4","pages":"817 - 819"},"PeriodicalIF":1.1,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Y. Wang, Z. Li, C. Liu, Y. Yuan, J. Zhao, H. A. Aisa
{"title":"New Pentacyclic Triterpene from Vitis vinifera","authors":"Y. Wang, Z. Li, C. Liu, Y. Yuan, J. Zhao, H. A. Aisa","doi":"10.1007/s10600-026-05054-5","DOIUrl":"10.1007/s10600-026-05054-5","url":null,"abstract":"<p>The new pentacyclic triterpene 28-norolean-12-en-3<i>β</i>,17<i>β</i>-diol-11-oxo (<b>1</b>) and four known compounds (<b>2</b>–<b>5</b>) were isolated from <i>Vitis vinifera</i> L. The structure of the new pentacyclic triterpene was established using chemical and physical data.</p>","PeriodicalId":514,"journal":{"name":"Chemistry of Natural Compounds","volume":"62 4","pages":"733 - 735"},"PeriodicalIF":1.1,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}