
L'étude chimique de Cycas aenigma, une plante endémique des Philippines, a conduit à l'isolement d'un néolignane rare, le 2-[2-hydroxy-5-(3-hydroxypropyl)-3-méthoxyphényl]-1-(4-hydroxy-3-méthoxyphényl) propane-1,3diol (1), le pinorésinol (2) et les alcools gras (3) des tracts ; et les triglycérols (4) et un mélange de β-sitostérol (5a) et de stigmastérol (5b) du pétiole et du rachis. La structure de 1 a été élucidée par spectroscopie RMN 1D et 2D étendue, tandis que celles de 2-5b ont été identifiées par comparaison de leurs données RMN 1 H et/ou 13 C avec des données de la littérature.
La investigación química de Cycas aenigma, una planta endémica de Filipinas, condujo al aislamiento de un neolignano raro, 2-[2-hidroxi-5-(3-hidroxipropil)-3-metoxifenil]-1-(4-hidroxi-3-metoxifenil) propano-1,3diol (1), pinoresinol (2) y alcoholes grasos (3) de las valvas; y trigliceroles (4), y una mezcla de β-sitosterol (5a) y estigmasterol (5b) del pecíolo y el raquis. La estructura de 1 se dilucidó mediante espectroscopía de RMN 1D y 2D extensa, mientras que las de 2-5b se identificaron mediante la comparación de sus datos de RMN 1H y/o 13C con datos de la literatura.
Chemical investigation of Cycas aenigma, a plant endemic to the Philippines, led to the isolation of a rare neolignan, 2-[2-hydroxy-5-(3-hydroxypropyl)-3-methoxyphenyl]-1-(4-hydroxy-3-methoxyphenyl)propane-1,3diol (1), pinoresinol (2), and fatty alcohols (3) from the leaflets; and triglycerols (4), and a mixture of β-sitosterol (5a) and stigmasterol (5b) from the petiole and rachis.The structure of 1 was elucidated by extensive 1D and 2D NMR spectroscopy, while those of 2-5b were identified by comparison of their 1 H and/or 13 C NMR data with literature data.
أدى التحقيق الكيميائي في Cycas aenigma، وهو نبات مستوطن في الفلبين، إلى عزل نيوليجنان نادر، 2 -[2 -هيدروكسي-5 - (3 -هيدروكسي بروبيل) -3 -ميثوكسي فينيل]-1 -(4 -هيدروكسي-3 -ميثوكسي فينيل) بروبان-1، 3 -ديول (1)، بينوريسينول (2)، والكحولات الدهنية (3) من الوريقات ؛ والدهون الثلاثية (4)، ومزيج من بيتا سيتوستيرول (5 أ) وستيغماسترول (5 ب) من أعماق وراشيس. تم توضيح بنية 1 من خلال التحليل الطيفي 1D و 2 D NMR، في حين تم تحديد تلك من 2-5 B من خلال مقارنة بيانات 1 H و/أو 13 C NMR مع البيانات الأدبية.
Phytochemical Analysis, Chromatography, Life Sciences, Social Sciences, Traditional medicine, Diversity and Applications of Cyperus Species, Plant Science, Chemical constituents, FOS: Sociology, Agricultural and Biological Sciences, Chemistry, Evolutionary Innovations and Conservation of Cycads, Anthropology, Medicine, Resilience of Traditional Irrigation Communities in Southwest USA, Biology, Ecology, Evolution, Behavior and Systematics
Phytochemical Analysis, Chromatography, Life Sciences, Social Sciences, Traditional medicine, Diversity and Applications of Cyperus Species, Plant Science, Chemical constituents, FOS: Sociology, Agricultural and Biological Sciences, Chemistry, Evolutionary Innovations and Conservation of Cycads, Anthropology, Medicine, Resilience of Traditional Irrigation Communities in Southwest USA, Biology, Ecology, Evolution, Behavior and Systematics
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