{"title":"Three rare verbascoside conjugated with iridoid glycosides and a diacylated iridoid diglycoside from Gmelina elliptica","authors":"Jedsada Maliwong , Nitirat Chimnoi , Somsak Ruchirawat , Tripetch Kanchanapoom","doi":"10.1016/j.phytochem.2025.114649","DOIUrl":null,"url":null,"abstract":"<div><div>Three rare verbascoside conjugated with iridoid glucosides linked by an ester bond, termed songmaeosides A-C (<strong>1</strong>–<strong>3</strong>), in addition to an unreported diacylated iridoid diglycoside, songmaeoside D (<strong>8</strong>), were isolated from the leaves of <em>Gmelina elliptica</em>. Additionally, premcoryoside (<strong>4</strong>), 6-α-L-(2ʺ-caffeoyl)-rhamnopyranosylcatalpol (<strong>5</strong>), saccatoside (<strong>6</strong>), scorodioside (<strong>7</strong>), verbascoside (<strong>9</strong>), syringalide A 3ʹ-α-<span>l</span>-rhamnopyranoside (<strong>10</strong>), isoverbascoside (<strong>11</strong>), icariside F<sub>2</sub> (<strong>12</strong>), and sericoside (<strong>13</strong>) were also isolated. The isolation of verbascoside conjugated with iridoid glucosides through an ester linkage from this species is an uncommon phenomenon in plant sources. Premcoryoside was the first chemical recorded for this class in 1993. This study reveals a new discovery on this class of compounds, which has remained unpublished for almost 30 years.</div></div>","PeriodicalId":20170,"journal":{"name":"Phytochemistry","volume":"240 ","pages":"Article 114649"},"PeriodicalIF":3.4000,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Phytochemistry","FirstCategoryId":"99","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0031942225002729","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Three rare verbascoside conjugated with iridoid glucosides linked by an ester bond, termed songmaeosides A-C (1–3), in addition to an unreported diacylated iridoid diglycoside, songmaeoside D (8), were isolated from the leaves of Gmelina elliptica. Additionally, premcoryoside (4), 6-α-L-(2ʺ-caffeoyl)-rhamnopyranosylcatalpol (5), saccatoside (6), scorodioside (7), verbascoside (9), syringalide A 3ʹ-α-l-rhamnopyranoside (10), isoverbascoside (11), icariside F2 (12), and sericoside (13) were also isolated. The isolation of verbascoside conjugated with iridoid glucosides through an ester linkage from this species is an uncommon phenomenon in plant sources. Premcoryoside was the first chemical recorded for this class in 1993. This study reveals a new discovery on this class of compounds, which has remained unpublished for almost 30 years.
期刊介绍:
Phytochemistry is a leading international journal publishing studies of plant chemistry, biochemistry, molecular biology and genetics, structure and bioactivities of phytochemicals, including ''-omics'' and bioinformatics/computational biology approaches. Phytochemistry is a primary source for papers dealing with phytochemicals, especially reports concerning their biosynthesis, regulation, and biological properties both in planta and as bioactive principles. Articles are published online as soon as possible as Articles-in-Press and in 12 volumes per year. Occasional topic-focussed special issues are published composed of papers from invited authors.