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    • 4. 发明授权
    • 4-aryl-imidazole derivatives
    • 4-芳基 - 咪唑衍生物
    • US5462959A
    • 1995-10-31
    • US136530
    • 1993-10-14
    • John H. PickRobert T. Logan
    • John H. PickRobert T. Logan
    • A61K31/415A61K31/425A61K31/426A61P9/04A61P11/08A61P43/00C07D233/90C07D277/20C07D277/56
    • C07D277/56C07D233/90
    • The invention concerns a 4-aryl-imidazole derivative having the formula I ##STR1## wherein X is 0 or NOH,Y is NR.sub.3,Ar is a group selected from phenyl, naphthyl, tetrahydronaphthyl, and biphenyl,R is one to four substituents independently selected from hydrogen, hydroxy, lower alkyl, lower alkoxy, lower thioalkyl, cycloalkyl, halogen, CF.sub.3, NO.sub.2, and O--ALK--NR.sub.1 R.sub.2, in which ALK is a saturated aliphatic hydrocarbon group having 2-6 carbon atoms, and R.sub.1 and R.sub.2 are independently hydrogen or lower alkyl, or form, together with the nitrogen atom to which they are bonded, a heterocyclic ring, andR.sub.3 is hydrogen or a lower alkyl; or a pharmaceutically acceptable salt thereof, with the proviso that 4-(4-chlorophenyl)-thiazole-2-carboxamide is excluded. The compounds according to the invention increase the sensitivity of cardiac myofibrils to calcium and possess phosphodiesterase inhibitory activity and bronchodilator activity, and are useful for the treatment of patients suffering from heart failure and asthma.
    • 本发明涉及具有式I的4-芳基 - 咪唑衍生物,其中X为0或NOH,Y为NR3,Ar为选自苯基,萘基,四氢萘基和联苯基的基团,R为1-4个取代基 独立地选自氢,羟基,低级烷基,低级烷氧基,低级硫代烷基,环烷基,卤素,CF 3,NO 2和O-ALK-NR 1 R 2,其中ALK是具有2-6个碳原子的饱和脂族烃基, R2独立地为氢或低级烷基,或与它们所键合的氮原子一起形成杂环,并且R 3为氢或低级烷基; 或其药学上可接受的盐,条件是不包括4-(4-氯苯基) - 噻唑-2-甲酰胺。 根据本发明的化合物增加心脏肌原纤维对钙的敏感性并具有磷酸二酯酶抑制活性和支气管扩张剂活性,并且可用于治疗患有心力衰竭和哮喘的患者。
    • 6. 发明授权
    • Method for manufacturing dibenzylamine
    • 二苄胺的制备方法
    • US5430187A
    • 1995-07-04
    • US244223
    • 1994-05-17
    • Burkhard WeusteManfred Bergfeld
    • Burkhard WeusteManfred Bergfeld
    • C07C209/26C07C209/24
    • C07C209/26
    • The method for manufacturing dibenzylamine by reacting benzaldehyde and ammonia in the presence of hydrogen and a hydrogenation catalyst in an inert organic solvent is characterized by the fact that the reaction is conducted with an ammonia ratio of >0.5 mol per mol benzaldehyde and with a hydrogenation catalyst containing a platinum metal and/or a ferrous metal on a carrier. The method is performed at low temperatures, preferably 40.degree.-90.degree. C. In particular, a high selectivity for dibenzylamine of more than 90% is achieved with practically complete benzaldehyde conversion.
    • PCT No.PCT / EP92 / 02918 Sec。 371日期:1994年5月17日 102(e)日期1994年5月17日PCT提交1992年12月16日PCT公布。 公开号WO93 / 13047 日期:1993年7月8日。在惰性有机溶剂中,在氢气和氢化催化剂存在下,使苯甲醛和氨反应制备二苄基胺的方法的特征在于,反应是以氨比例> 0.5mol / 并与载体上含有铂金属和/或黑色金属的氢化催化剂反应。 该方法在低温下进行,优选在40-90℃进行。特别地,通过几乎完全的苯甲醛转化,实现对二苄基胺的高选择性大于90%。
    • 10. 发明授权
    • Process for the preparation of 2-mercaptobenzothiazole
    • 2-巯基苯并噻唑的制备方法
    • US5367082A
    • 1994-11-22
    • US11767
    • 1993-02-01
    • Manfred J. BergfeldNorbert GutleinKlaus WohlfahrtEberhard Aust
    • Manfred J. BergfeldNorbert GutleinKlaus WohlfahrtEberhard Aust
    • C07D277/72
    • C07D277/72Y02P20/582
    • In a process for the preparation of 2-mercaptobenzothiazole from aniline, sulfur and carbon disulfide under pressure and for separation of the 2-mercaptobenzothiazole from the crude reaction product by cooling and recycling the desirable intermediates and by-products into the reactor together with aniline, sulfur and carbon disulfide, the reaction is carried out using a residence time in the reactor of at least one hour to a time before the 2-mercaptobenzothiazole product thus-formed begins to decompose into undesirable intermediate products. A maximum hydrogen sulfide pressure is maintained on quenching to a temperature ranging between 220 and 280.degree. C. by mixing the crude reaction product with carbon disulfide at a temperature sufficient to obtain a homogeneous quenched mixture. The hydrogen sulfide is removed completely only after crystallization of the 2-mercaptobenzothiazole.
    • 在压力下从苯胺,硫和二硫化碳制备2-巯基苯并噻唑的方法中,通过与苯胺一起冷却和再循环所需的中间体和副产物,将2-巯基苯并噻唑与粗反应产物分离, 硫和二硫化碳,反应在反应器中停留时间至少1小时至此后由此形成的2-巯基苯并噻唑产物开始分解成不期望的中间产物。 通过在足以获得均匀淬火的混合物的温度下将粗反应产物与二硫化碳混合,将淬火后的最大硫化氢压力维持在220-280℃的温度。 仅在2-巯基苯并噻唑结晶后才完全除去硫化氢。