Production of 2',3'-dideoxy-2',3'-Didehydronucleosides
    2.
    发明公开
    Production of 2',3'-dideoxy-2',3'-Didehydronucleosides 失效
    Herstellung von 2',3'-二脱氧-2',3'-二脱氢核糖苷。

    公开(公告)号:EP0334368A2

    公开(公告)日:1989-09-27

    申请号:EP89105269.8

    申请日:1989-03-23

    IPC分类号: C07D405/04 A61K31/505

    CPC分类号: C07D405/04 C07H19/04

    摘要: There are disclosed novel processes for producing 2′,3′-dideoxy-2′3′-didehydronucleosides, for example, 2′,3′- dideoxy-2′,3′-didehydrothymidine in high yields and on a large scale. The compounds so-produced are useful as antiviral agents, especially as agents effective against the human immunodeficiency viruses (HIV).

    摘要翻译: 公开了以高产率和大规模生产2分钟,3分钟 - 脱氧-2分钟3分钟 - 二氢核苷的新方法,例如2分钟,3分钟 - 脱氧-2分钟,3分钟 - 二氢胸苷。 如此制备的化合物可用作抗病毒剂,特别是作为有效抵抗人类免疫缺陷病毒(HIV)的药剂。

    Cephalosporin derivatives
    3.
    发明公开
    Cephalosporin derivatives 失效
    头孢菌素衍生物

    公开(公告)号:EP0727426A2

    公开(公告)日:1996-08-21

    申请号:EP96400295.0

    申请日:1996-02-13

    IPC分类号: C07D501/36 A61K31/545

    CPC分类号: C07D501/00

    摘要: Novel cephem derivatives represented by the general formula

    in which the Acyl substituent is a group of the formula

    wherein Ar is a lipophilic optionally substituted phenyl, naphthyl, pyridyl or benzthiazolyl group; R 1 is selected from certain optionally substituted aliphatic, aromatic, arylaliphatic or sugar moieties and R 2 and R 3 are each independently hydrogen, alkyl or aminoalkylcarbonylamino are gram-positive antibacterial agents, especially useful in the treatment of infectious diseases caused by methicillin-resistant Staphylococcus aureus (MRSA).

    摘要翻译: 由通式表示的新型头孢烯衍生物,其中酰基取代基是下式的基团其中Ar是亲脂性的任选取代的苯基,萘基,吡啶基或苯并噻唑基; R1选自某些任选取代的脂族,芳族,芳基脂族或糖部分,R2和R3各自独立地为氢,烷基或氨基烷基羰基氨基为革兰氏阳性抗菌剂,特别用于治疗由耐甲氧西林金黄色葡萄球菌引起的感染性疾病 MRSA)。

    3'-Substituted methyl nucleosides as antiviral agents
    10.
    发明公开
    3'-Substituted methyl nucleosides as antiviral agents 失效
    3'-取代的甲基核苷作为抗病毒剂

    公开(公告)号:EP0391411A3

    公开(公告)日:1991-04-10

    申请号:EP90106510.2

    申请日:1990-04-05

    CPC分类号: C07H19/06 C07H19/16 Y02P20/55

    摘要: Certain 3′-substituted methyl nucleosides are disclosed which are useful in the treatment of viral infections, e.g., infections caused by herpes simplex virus types 1 and 2, and/or are useful as intermediates in the preparation of 3′-substituted methyl nucleosides having antiviral activity. In accordance with one aspect of the invention, there are provided novel 3′-substituted methyl nucleosides represented by Formulas I and II
    wherein:
    B indicates that B can be either alpha or beta;
    B is a member selected from the group consisting of the pyrimidine and purine nucleoside bases connected to the tetrahydrofuran ring through the N¹ heterocyclic nitrogen atom of the pyrimidines and the N⁹ or N⁷ heterocyclic nitrogen atom of the purines including the naturally occurring nucleoside bases and 5-fluoro, 5-bromo, 5-iodo, 5-chloro, 5-trifluoromethyl, 5-ethyl, 5-(2-bromovinyl)­uracil; triazolecarboxamide; 2-aminopurine;
    2,6-diaminopurine; 4-chloropyrimidine; pyrimidine; azapyrimidine; purine; 2,6-dichloropurine; 2-amino-6-­chloropurine; and deazapurine;
    R and Q are either both hydrogen or halogen, especially fluorine, or one is hydrogen and the other one is hydroxy or halogen, especially fluorine; in Formula I at least one of R and Q is halogen; and
    X and Y can be the same or different and are selected from the group consisting of O-alkyl, O-aryl, O-acyl-, halogen, especially fluorine, azido, amino, acylamido, -SH, S-alkyl and S-aryl, or one of X or Y can be hydroxy, or X may be the group R¹O and Y may be the group R²O wherein R¹ and R² are hydrogen or hydroxy-protecting groups. Preferred O-alkyl and S-alkyl groups contain from one to four carbon atoms; preferred O-aryl and S-aryl groups contain from 6 to 10 carbon atoms; and preferred O-acyl groups contain from one to four carbon atoms.