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    • 53. 发明申请
    • NOVEL ADENINE COMPOUND
    • 新颖的化合物
    • US20110028715A1
    • 2011-02-03
    • US12905012
    • 2010-10-14
    • Yoshiaki ISOBETomoaki NAKAMURA
    • Yoshiaki ISOBETomoaki NAKAMURA
    • C07D401/14C07D473/02C07D413/14
    • C07D473/24C07D473/00C07D473/16C07D473/18C07D473/34
    • A novel adenine compound represented by the formula (1): wherein A represents an (un)substituted aromatic carbocycle or (un)substituted aromatic heterocycle; L1 and L2 each independently represents straightened or branched alkylene, etc.; R1 represents halogen, (un)substituted alkyl, (un)substituted alkenyl, (un)substituted alkynyl, (un)substituted cycloalkyl, (un)substituted aryl, or (un)substituted heteroaryl; R2 and R3 each independently represents hydrogen, or (un)substituted alkyl, (un)substituted alkenyl, (un)substituted alkynyl, (un)substituted cycloalkyl, (un)substituted saturated heterocycle, (un)substituted aryl, or (un)substituted heteroaryl, or R2 combines together with L2 or R3 to form (un)substituted 4- to 8-membered nitrogen-containing saturated heterocycle; X is oxygen, sulfur, SO, SO2, NR7, NR7CO wherein R7 is hydrogen or alkyl, or a single bond; provided that X is a single bond when R1 is halogen, or a pharmaceutically acceptable salt thereof. The compound and salt are useful as a medicine.
    • 由式(1)表示的新型腺嘌呤化合物:其中A表示(un)取代的芳族碳环或(un)取代的芳族杂环; L1和L2各自独立地表示直链或支链亚烷基等; R 1表示卤素,(未)取代的烷基,(未)取代的烯基,(未)取代的炔基,(未)取代的环烷基,(未)取代的芳基或(未)取代的杂芳基; R2和R3各自独立地表示氢,或(未)取代的烷基,(未)取代的烯基,(未)取代的炔基,(未)取代的环烷基,(未)取代的饱和杂环,(未)取代的芳基或(未) 或R 2与L 2或R 3一起形成(未)取代的4-至8-元含氮饱和杂环; X是氧,硫,SO,SO 2,NR 7,NR 7 CO,其中R 7是氢或烷基,或单键; 条件是当R 1为卤素时X为单键,或其药学上可接受的盐。 化合物和盐可用作药物。
    • 57. 发明申请
    • METHOD FOR PRODUCING NUCLEOSIDE DERIVATIVES
    • 生产核苷衍生物的方法
    • US20070282104A1
    • 2007-12-06
    • US11782695
    • 2007-07-25
    • Satoji TAKAHASHIMitsuhiko KojimaShouichi KondouTatsuya IshikawaYoshinori Ogawa
    • Satoji TAKAHASHIMitsuhiko KojimaShouichi KondouTatsuya IshikawaYoshinori Ogawa
    • C07D473/02C07D473/10
    • C12P17/182C07D473/30C07D473/34Y02P20/55
    • The present invention relates to a method for producing a nucleoside derivative represented by formula (2), comprising the step of reducing a nucleoside of formula (1) in the presence of a noble metal catalyst comprising a carrier and a noble metal supported thereby, selected from the group consisting of (A) a homogeneously supported catalyst where the specific surface area of the noble metal is 95.0 m2/g or more and the particle size of the noble metal is 4.3 nm or less, and (B) a surface-loaded catalyst where the specific surface area of the noble metal is 56.0 m2/g or more and the particle size of the noble metal is 8.0 nm or less, wherein R1 is hydrogen or a protective group, R2 is NH2 or OH, R3 is an acyl group, and X is a chlorine or bromine atom. According to the present invention, the yield can be made equal even when the amount of catalyst is smaller than that used for the conventional products.
    • 本发明涉及一种制备由式(2)表示的核苷衍生物的方法,包括在贵金属催化剂存在下还原式(1)的核苷的步骤,所述贵金属催化剂包含载体和由其所支持的贵金属,所选择的贵金属被选择 来自由(A)贵金属的比表面积为95.0m 2 / g以上的均匀负载的催化剂组成的组,贵金属的粒径为4.3nm以下, 和(B)贵金属的比表面积为56.0m 2 / g以上,贵金属的粒径为8.0nm以下的表面负载型催化剂,其中,R' R 1是氢或保护基,R 2是NH 2或OH,R 3是酰基, X是氯或溴原子。 根据本发明,即使当催化剂的用量小于常规产品所用量时,产率也可以相等。