类生物碱类

Part 4: Synthesis of (5α)-3-Hydroxy-18-Nor-C-Homo-13a-Azaandrostanes 1-Azabicyclo [5, 3, 0] decane (6) is a core skeleton of stemonine (7) and its derivatives, which are a group of bio-active natural products.

四、（5α）-3-羟基-18-nor-C-homo-13a-氮杂雄甾烷的合成 1-氮杂双环[5.3.0]癸烷(6)是天然产物百部生物碱(7)类分子的骨架结构，许多该类化合物都具有重要的生物活性。

Belonging to solanaceae, is an economically important vegetable of the world and widely cultivated in China. Eggplant is one of the seven most important export crops of China. It is a good source of carbohydrate, protein, fattiness, alkaloid, vitamin and mineral. It has been used for treatment the disease of inflammation, hypersusceptibility, cancer and arteriosclerosis.

是我国栽培面积广、居民消费量大的主要蔬菜之一，也是我国蔬菜出口创汇七大作物之一，含有丰富的碳水化合物、蛋白质、脂肪、生物碱、维生素、类黄酮及矿物质等，具有提高人体抗炎症、抗过敏、防癌和抗心血管动脉硬化等功能，备受人们的青睐。

A poisonous , crystalline alkaloid derived from certain nightshade plants, especially Egyptian henbane.

阿托品：有毒的结晶性生物碱，从茄类植物，特别是埃及天仙子提炼而得。

A poisonous, crystalline alkaloid derive d from certain nightshade plants, especially Egyptian henbane.

阿托品：有毒的结晶性生物碱，从茄类植物，特别是埃及天仙子提炼而得。

Certain plant families, including the poppy family and the nightshade family, are particularly rich in them.

某些植物科类的生物碱含量特别丰富。

Overman and co-workers have recently made several important contributions to the synthesis of this family of alkaloids.

Overman 和他的同事们在近期就合成这个属类的生物碱做出几个重要的贡献。

Sanguinarine belongs to the benzophenanthridine alkaloid analog, and is derived mainly from the root of Sanguinaria Canadensis L., Chelidonium majus L.

血根碱是属於苯菲里啶类之生物碱，其成分乃源自於血根、白屈菜以及蓟罂粟的种子。

Kudingcha with polyphenols of 2.08 ~ 8.16%, high water extracts and soluble carbonhydrate had the quality characters of dense sapor, bitter turn to sugariness etc.

6四川苦丁茶所含的多酚类仅为2.08～8.16％，水浸出物、可浴性糖和生物碱含量均较高，构成了味浓、先苦而回味甘甜等品质特征。

The density functional theory B3LYP/6-31G(superscript * was used to study 9 aconitine analogs and the relationship between structure and toxicity was discussed.

采用密度泛函理论B3LYP/6-31G方法，对附子中的9种乌头碱类成分进行了量子化学理论研究，讨论了该类生物碱的结构和毒性的关系。

Crebanine, which mainly lies in some Stephania plants of Menispermaceae, is an isoquinoline aporphine alkaloids.

中文摘要：克班宁(Crebanine，Cre)是一种异喹啉类阿朴菲型生物碱，主要存在于防己科千金藤属的部分种中。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。