查询词典 hazel alder

During these years (1997-2000) in the research area of annonaceous acetogenins 5 natural products and a number of chiral-pure analogs of annonaceous acetogenins have been synthesized using sugars as the starting materials. Their high activity and selectivity against cell line of colon tumor and a relationship between activity and configuration have been found too. In the respect of inhibitor of sialidase two new methodologies for the synthesis of chiral-pure 3-deoxy-ulosonic acid using hetero-Diels-Alder reaction or asymmetric propargylation as the key reaction were developed. On the topic of anti-leukemia marine natural product clavulactone a synthetic method based on the free radical cyclization and starting from sugar has been developed. In other title of PKC inhibited agent sphingosine a new synthetic route with SN2' as the key reaction has also been disclosed.

项目期间（1997-2000）在番荔枝内酯方面从糖出发合成了五个天然产物和一批手性纯的类似物，它们对肠癌细胞有很高的活性和选择性，并与构型有关；在唾液酸酶抑制剂方面发展了二类全新手性纯高碳糖的合成方法－杂原子D－A反应或丙炔基不对称加成为关键的反应；抗白血病海洋天然产物群柱虫内酯方面研究了由糖出发和自由基环化反应的合成方法；对PKC 起抑制作用的鞘氨醇方面也开创了新的合成途径－由糖出发并以SN2'反应为关键反应。

After prolonged heating 15h, 120° of the origina lly isolated stereoisomer B (melting C point mp: 157° Diels and Alder obtained two new stereoisomers E (mp: 153° and F C), C (mp: 163° Equilibration of B with a catalytic amount of a strong base at 25° ga ve a C).

在比原始分离异构体 B (熔点： 157°C)的方法延长加热时间之后(15h， 120°C)， Diels and Alder 获得了两个新的异构体 E(熔点：153°C)和 F(熔点：163°C)。

1 Piece OLD Solid Alder, Carved top!!!! Cherry Sunburst with Natural wood linings.

一整块Alder老木，樱桃渐变色，可以看到自然木纹。

Maple Neck, Alder Body, Standard Telecaster pickup Configuration, Satin Laquer sunburst finish, Three saddle string through bridge, Schaller tuners.

03年美国制造，22品，枫木琴颈，桦木琴身日落色，标准tele拾音器，三簧式弦桥。

Tri-City Herald - The menu features alder wood-smoked salmon seasoned with a secret red barbecue sauce that's wonderful on the fish, Broom said.

三市先驱-菜单功能桤木烟熏鲑鱼风干同一个秘密红色烤肉酱，美好的月鱼，扫帚说。

We have: Chinese South West White Birch, Alder, Chinese Mahogany, Chempaka,Chinese Northeast Birch, Basswood, Kashiwa Oak, Tulipwood, Chinese Ash, IPE, Tonkabean Cumaru, Macaranduba, Tauari, Walnut, Sapele, Maple, Red Oak, White Ask, Cherry, Cedar, Tata Juba Bubinga Sucupira ect including domestic and imported veneers and bamboo veneer.

工厂生产的木皮品种有：五角枫、白椿、国产黑胡桃、国产白元、铁杉、国产红樱桃、国产红檀、拐枣、香柏、西楠桦、白桦、白松、白木莲、铁椿、白胡桃、桃花芯、东北桦、椴木、柞木、楸木、水曲柳、紫檀、黄花梨、黑胡桃、红橡、白橡、樱桃、沙比利等各类国产及进口木皮。

Along the roads , laurel , viburnum and alder , great ferns and wildflowers delighted the traveler's eyes through much of the year .

沿着小路两旁生长的月桂树、荚和赤杨树、巨大的羊齿植物和野花，在一年的大部分时间里都使旅行者感到赏心悦目。

Along the roads, laurel , viburnum and alder , great ferns and wildflowers delighted the traveler's eye through much of the year.

在路的两旁，一年中许多时候，月桂树、荚莲、桤木、蕨类植物和各样的野花都能让过往的行人赏心悦目。

Year-on-year exports of White Oak, Poplar, Alder, Hard Maple and Walnut lumber were up 18%, 25%, 44%, 36% and 34%, respectively, in Jan.

年度1月对比出口的白橡，白杨木，赤杨木，硬枫木和胡桃木木板分别增长了18%，25%，44%，36%和34%。

So, by the Diels-Alder reaction of tetraphenylcyclopentadienone, acenaphthenecyclone and benzophenanthrenecyclone with the vinyl groups in C gum, three kinds of polymethylvinylsilicone oil with condensed aromatics are synthesized respectively: polymethylvinylsilicone oil with tetraphenylphenyl groups (called C_1 gum for short), polymethylvinylsilicone oil with acenaphthenyl groups (C_2 gum) and polymethylvinylsilicone oil with benzophenanthrene groups (C3 gum).

根据此原则，利用四苯基环戊二烯酮、苊式环戊二烯酮和菲式环戊二烯酮与C胶上的乙烯基进行Diels—Alder反应，分别合成了三种含稠环基团的乙烯基硅油：四苯基苯基乙烯基硅油(C_1胶)，苊式多苯基苯基乙烯基硅油(C_2胶)和菲式多苯基苯基乙烯基硅油(C_3胶)，并根据~1HNMR谱图上不同氢原子的积分面积计算了三种胶中稠环基团和乙烯基的含量。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。