Biotin intermediate and process for preparing the same
    33.
    发明授权
    Biotin intermediate and process for preparing the same 有权
    生物素中间体及其制备方法

    公开(公告)号:US07799929B2

    公开(公告)日:2010-09-21

    申请号:US12007118

    申请日:2008-01-07

    摘要: The present invention is to provide a process for preparing a synthetic intermediate of biotin which is industrially advantageous, and discloses a process for preparing a compound represented by the formula (I): 1 wherein R1 and R2 may be the same or different from each other, and each represents hydrogen atom, a benzyl group which may have a substituent(s) on the benzene ring, a benzhydryl group which may have a substituent(s) on the benzen ring, or a trityl group which may have a substituent(s) on the benzene ring, R3 represents cyano group, carboxyl group, an alkoxycarbonyl group, an alkylthiocarbonyl group, or a carbamoyl group which may have a substituent, or a salt thereof which comprises subjecting a compound represented by the formula (II-a): 2 wherein the symbols have the same meanings as defined above, or a salt thereof to ring transformation.

    摘要翻译: 本发明提供一种制备在工业上有利的生物素的合成中间体的方法,并公开了制备由式(I)表示的化合物的方法:其中R1和R2可以相同或不同 ,各自表示氢原子,苯环上可具有取代基的苄基,可在苯环上具有取代基的二苯甲基或可具有取代基的三苯甲基(s ),R3表示氰基,羧基,烷氧基羰基,烷硫基羰基或可具有取代基的氨基甲酰基,或其盐,其包括使由式(II-a)表示的化合物 2,其中符号具有与上述相同的含义或其盐进行环转化。

    Melt-cast explosive material
    36.
    发明授权
    Melt-cast explosive material 失效
    熔铸炸药

    公开(公告)号:US07304164B1

    公开(公告)日:2007-12-04

    申请号:US11549146

    申请日:2006-10-13

    IPC分类号: C07D233/28

    CPC分类号: C07D233/92

    摘要: 1-Methyl-2,4,5-Trinitroimidazole is synthesized starting from 4-nitroimidazole using stepwise nitration method and further methylation using Dimethylsulphate. It is relatively insensitive to impact and its thermal stability is excellent. The calculated detonation properties indicate that its performance is about 30% better than TATB. It can be prepared easily, with reasonable yield, starting from commercially available Imidazole. Results from impact sensitivity, friction sensitivity, time-to-explosion temperature and vacuum stability tests indicate that it is less sensitive than both RDX and HMX. The good oxygen balance and measured heat of formation data of this material indicate that its propellant performance should be good.

    摘要翻译: 使用逐步硝化方法从4-硝基咪唑开始合成1-甲基-2,4,5-三硝基咪唑,并使用二甲基硫酸盐进一步甲基化。 对冲击相对不敏感,其热稳定性优异。 计算的爆轰特性表明其性能比TATB好约30%。 从市售的咪唑开始,可以容易地制备出合理的产率。 冲击敏感性,摩擦灵敏度,时间 - 爆炸温度和真空稳定性测试结果表明,它比RDX和HMX都敏感。 该材料的良好的氧气平衡和测量的热量数据表明其推进剂性能应良好。

    Multi-substituted imidazolines and method of use thereof
    37.
    发明授权
    Multi-substituted imidazolines and method of use thereof 有权
    多取代咪唑啉及其使用方法

    公开(公告)号:US06878735B2

    公开(公告)日:2005-04-12

    申请号:US10347323

    申请日:2003-01-17

    摘要: A new class of imidazolines as 4-position acids or esters with very potent anti-inflammatory as well as antimicrobial activity is described. The synthesis of these imidazolines includes a multicomponent reaction applicable to a combinatorial synthetic approach. The combination of these two key characteristics provides an effective therapeutic drug in the treatment of septic shock as well as many other inflammatory (arthritis and asthma) and infectious disorders. The use of this novel class of non-steroidal agents as anti-inflammatory agents (for the treatment of asthma etc.), antibacterial agents and antiseptic agents is described. The compounds are also useful in the treatment of tumors (such as cancers). The imidazolines are potent inhibitors of the transcription factor NF-κB as well as potent activity against the Gram (+) bacterium B. subtillus and B. cereus with MIC values in the range of 50 μm/mL.

    摘要翻译: 描述了一类新的具有非常有效的抗炎和抗微生物活性的4-位酸或酯的咪唑啉。 这些咪唑啉的合成包括适用于组合合成方法的多组分反应。 这两个关键特征的组合在治疗脓毒性休克以及许多其他炎症(关节炎和哮喘)和感染性疾病方面提供了有效的治疗药物。 描述了使用这种新型的非甾体试剂作为抗炎剂(用于治疗哮喘等),抗菌剂和防腐剂。 这些化合物也可用于治疗肿瘤(如癌症)。 咪唑啉是转录因子NF-κB的有效抑制剂,以及对具有50mum / mL范围的MIC值的革兰氏阴性细菌(B. subtilis)和蜡状芽胞杆菌(B. cereus)的有效活性。

    Process for producing arylsulfenyl halide
    39.
    发明申请
    Process for producing arylsulfenyl halide 失效
    芳基硫基卤化物的制备方法

    公开(公告)号:US20030195363A1

    公开(公告)日:2003-10-16

    申请号:US10366356

    申请日:2003-02-14

    IPC分类号: C07D233/28 C07C323/00

    摘要: A process for producing a compound of the formula (II): 1 wherein Hal1 represents halogen and R1 and R2 each independently represents halogen, alkyl, alkoxy, nitro or cyano, which comprises allowing a halogenating agent to react with a compound of the formula (I): 2 wherein Alk represents branched alkyl and R1 and R2 are as defined above.

    摘要翻译: 一种制备式(II)化合物的方法:其中Hal 1>代表卤素,R 1>和R 2各自独立地表示卤素,烷基,烷氧基,硝基或氰基,其中 包括允许卤化剂与式(I)的化合物反应:其中Alk表示支链烷基,R <上标>>和R 2>如上所定义。