Radicicol derivatives
    2.
    发明授权
    Radicicol derivatives 失效
    蓝霉素衍生物

    公开(公告)号:US5977165A

    公开(公告)日:1999-11-02

    申请号:US958285

    申请日:1997-10-27

    IPC分类号: C07D313/00 A61K31/335

    CPC分类号: C07D313/00

    摘要: The present invention relates to radicicol derivatives represented by the following formula (I) or pharmacologically acceptable salts thereof: ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and each represents hydrogen, alkanoyl, alkenoyl or tert-butyldimethylsilyl; (1) when X represents halogen, Y represents an oxygen atom or R.sup.4 --O--N (wherein R.sup.4 represents hydrogen or substituted or unsubstituted lower alkyl); and R.sup.3 represents hydrogen, alkanoyl, alkenoyl or the like; and (2) when X and R.sup.3 are combined with each other to represent a single bond; Y represents R.sup.4B --O--N (wherein R.sup.4B has the same meaning as R.sup.4). The radicicol derivatives of the present invention demonstrate tyrosine kinase inhibition activity and pharmacological activities such as antitumor, antimicrobial or immunosuppression effects.

    摘要翻译: 本发明涉及由下式(I)表示的根赤壳菌素衍生物或其药理学上可接受的盐:其中R1和R2相同或不同,各自代表氢,烷酰基,烯酰基或叔丁基二甲基甲硅烷基; (1)当X表示卤素时,Y表示氧原子或R4-O-N(其中R4表示氢或取代或未取代的低级烷基); 和R3表示氢,烷酰基,烯酰基等; 和(2)当X和R 3相互结合以表示单键时; Y表示R4B-O-N(其中R4B与R4相同)。 本发明的根皮霉素衍生物显示出酪氨酸激酶抑制活性和药理活性,如抗肿瘤,抗微生物或免疫抑制作用。

    EXHAUST GAS CONTROL APPARATUS AND METHOD FOR INTERNAL COMBUSTION ENGINE
    10.
    发明申请
    EXHAUST GAS CONTROL APPARATUS AND METHOD FOR INTERNAL COMBUSTION ENGINE 有权
    排气控制装置及内燃机的方法

    公开(公告)号:US20130017136A1

    公开(公告)日:2013-01-17

    申请号:US13636925

    申请日:2011-04-05

    IPC分类号: B01D53/94

    摘要: A NOx selective reduction catalyst for reducing NOx by the ammonia adsorbed is disposed in an engine exhaust gas passage. As states of adsorption of ammonia by the catalyst, there are a first adsorption state of ammonia that occurs when the ammonia is adsorbed during low temperature and a second adsorption state of ammonia that occurs when the ammonia is adsorbed or has already been adsorbed during high temperature. The amount of adsorbed ammonia in the first state is restricted to control concentration of the ammonia that is in the first state and desorbed when the temperature of the catalyst increases so as to be not higher than an allowable concentration, and that in the second state is restricted to control concentration of the ammonia that is in the second state and desorbed when the temperature of the catalyst increases so as to be not higher than an allowable concentration.

    摘要翻译: 在发动机废气通道中设置用于通过吸附氨还原NOx的NOx选择还原催化剂。 作为催化剂吸附氨的状态,当氨在低温下被吸附时发生氨的第一吸附状态和当氨吸附或已经在高温下被吸附时发生的氨的第二吸附状态 。 在第一状态下吸附的氨的量被限制为控制处于第一状态并在催化剂的温度升高时脱附的氨的浓度以不高于允许浓度,而在第二状态下的氨的浓度为 限制为控制处于第二状态并在催化剂温度升高时解吸的氨的浓度以不高于允许浓度。