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- pyrazine carboxamide 对二氮苯酰胺
- Cafenstrole is a highly active, low toxicity, broad-spectrum herbicide with triazole carboxamide structure. 苯砜唑是一种高效、低毒、除草谱广的三唑酰胺类除草剂。
- The method of preparation of the key intermediate,4 amino 1 methyl 3 n propylpyrazole 5 carboxamide(6)was improved. 改进了重要中间体4氨基1甲基3正丙基吡唑5酰胺(6)的合成工艺。
- S-(+)-2,2-dimethylcyclopropane carboxamide was isolated and purified from reaction mixture with total yield of 43.6%. 产物经分离、纯化,制备得到S-(+)-2;2-二甲基环丙烷甲酰胺样品,总收率达到43.;6%25。
- OBJECTIVE To study the protective effect of tetramethyl pyrazine (TMP) on cyclophosphamide injured mice. 目的:考察川芎嗪对小鼠环磷酰胺损伤的保护作用。
- However, related data show that besides Maillard reaction, the microbial metabolic pathway, the protein and amino acids healing processes can also produce pyrazine compounds. 但据有关资料表明,除了“美拉德反应途径”外还有“微生物代谢产物途径、蛋白质加热分解途径和氨基酸类的加热分解途径”也可以产生吡嗪类化合物。
- The ether soluble compounds of the reaction product were analyzed by GC/MS.The major iden tified compounds were pyrazine and furan compounds. 该反应产物的醚溶性成分经GC/MS分析显示,其主要成分为吡嗪类和呋喃类化合物。
- The results showed that there existed typical Maillard reaction product including pyrazine, thiazole, sulfur-containing compounds and so on. 结果分析表明,反应液存在典型的美拉德反应产物如吡嗪、噻唑、含硫化合物等。
- The synthetic method of perfume 2 - methyl - 3 - methoxy pyrazine was investigated and better reaction conditions have been found. 利用相转移催化法合成香料2-甲基-3甲氧基吡嗪,并对其反应条件进行探讨,找到较佳的反应条件。
- The variety and high content of pyrazine compounds in Maotai-flavor liquor are regarded as the products of Maillard reaction so far. 摘要迄今为止,普遍认为酱香型白酒中种类众多、含量很高的吡嗪类化合物是通过美拉德反应途径产生的。
- Furthermore, self-assembly of citric acid with Co, Ni, Cu or Zn has been conducted with pyrazine acting as base and/or the second ligand. 在考虑到乙酸根在以上一些合成实例中的重要作用后,我们采用了乙酰丙酮原位分解生成乙酸根的反应,以期螯合稀土金属离子的部分配位点,减小稀土有机多羧酸结构的交联度。
- However, related data show that besides Maillard reaction, the microbial metabolic pathway, the protein and amino acids heating processes can also produce pyrazine compounds. 但据有关资料表明,除了"美拉德反应途径"外还有"微生物代谢产物途径、蛋白质加热分解途径和氨基酸类的加热分解途径"也可以产生吡嗪类化合物。
- Radical hysterectomy, chemotherapy combined with dimethyl triazemo imidazole carboxamide(DTIC) and immunotherapy can improve the prognosis if the disease could be diagnosed in early stage. 对于早期患者,手术应作为首选治疗手段,而辅助性化疗及免疫治疗有可能改善其预后。
- With this method, we obtained eight microorganism strains with enantioselective amidase from 523 isolates, two of which showed R-stereospecific activity for (R,S)-2,2-dimethylcyclopropane carboxamide. 通过该模型,从523株菌种中筛选到产酰胺酶的菌种8株,其中2株能够R-型立体选择性降解2,2-二甲基环丙烷甲酰胺。
- Quasiclassical trajectory calculations (QCT) of the energy transfer between highly vibrationally excited pyrazine (C4N2H4) and N2, O2, NH3, and ground state C4N2H4 were performed respectively. 用准经典轨线(QCT)方法计算了高振动激发态吡嗪(C4N2H4)与N2、O2、NH3、基态吡嗪之间的碰撞传能.
- Vanadium complexes with catecholate or pyrazine 2-carboxylate ligands were prepared and characterized by Fourier transform infrared spectroscopy, 1H nuclear magnetic resonance spectroscopy, ultraviolet-visible spectroscopy, and elemental analysis. 制备了含苯磷二酚配体或吡嗪-2-羟酸酯配体的钒配合物,并运用傅里叶变换红外光谱、核磁共振谱、紫外-可见光谱及元素分析对其进行了表征。
- Based on quantum chemistry calculative methods,the geometric structure,stability and frontier molecular orbital of benzene,pyridine,pyridazine,pyrimidine and pyrazine are discussed in this paper. 采用量子化学计算方法讨论了苯及其吡啶、哒嗪、嘧啶、吡嗪5个分子的几何构型、稳定性和前线分子轨道。
- Sesame-flavor liquor has elegant and enjoyable complex aroma which are composed of pyrazine compounds(main body) and furan,phenols,thiazole and sulfur compounds(auxiliary substances). 芝麻香型白酒的芝麻香是以结构不同的吡嗪类化合物为主体,辅以呋喃类、酚类、噻唑、含硫化合物等共同构成的典雅、舒适、芳香、怡人的复合香气。
- Some important pyrazine flavors and their characteristic aromas and the general synthetic methods of pyrazines have been reviewed. 介绍了一些重要的吡嗪类杂环香料及各自的特征香气,并综述了此类化合物的一般合成法。
- aminoimidazole carboxamide ribotide 氨基米唑甲酰胺核苷酸