...（一）----中国科学院昆明植物研究所 关键词： 环肽，类环肽，构象，离子识别，理论计算研究 [gap=3567]Keywords: cyclopeptides, pseudo-cyclopeptides, conformation, ion recognition, theoretical computational..
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cyclopeptide alkaloid 环肽生物碱
stellaria cyclopeptide 银柴胡环肽
Homodetic cyclopeptide 一类为纯环肽
cyclopeptide iskisoid 环肽生物碱
plant cyclopeptide 植物环肽
marine cyclopeptide 海洋环肽
Due to the typical fragments for 3-hydroxyproline m/e96 fO 68 , the structure of contituent I belong to amphibine-B with 14-membered cyclopeptide alkloid, which the bonding amino acid was isoleucine, final amino acid was leucine.
来自3-羟基脯氨酸的主要碎片离子峰m/e96和68，可以推断单体I为amphibine-B型分子结构的14元环肽生物碱，其中环参与氨基酸为异亮氨酸，末端氨基酸为亮氨酸。
参考来源 - 酸枣仁镇静催眠有效成分的研究It is found that some compounds have certain activity in anti-tumor. the activity, synthesis and separation of cyclopeptide are described. And the new contracting reagents using the synthesis of cyclopeptides are also described in the new years.
它们均是具有抗肿瘤活性环五肽的中间体，本论文共分为五章，概括如下：首先介绍环五肽的生物活性，以及环肽的一些常见合成方法，近几年文献报道的合成肽类的缩合试剂和环肽的分析、分离最新方法进行综述。
参考来源 - LeuLeuLeuLeuLeu线型五肽的合成·2,447,543篇论文数据，部分数据来源于NoteExpress
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