Antitumor agent
    1.
    发明授权
    Antitumor agent 失效
    抗肿瘤剂

    公开(公告)号:US4521406A

    公开(公告)日:1985-06-04

    申请号:US265563

    申请日:1981-05-20

    摘要: An antitumor agent comprising a combination of 5-fluorocytosine and cytosinedeaminase has been developed. As to the practical administration procedure of the agent, it is preferable to carry out in such a manner that 5-fluorocytosine is first administered in any portion of the body, and cytosinedeaminase is then administered into the topically suffered portion. The administered 5-fluorocytosine is transferred into the suffered portion, and the 5-fluorocytosine is affected with the action of cytosinedeaminase to convert the former compound into 5-fluorouracil, resulting in that the necrosis of the tumor tissue is caused.

    摘要翻译: 已经开发了包含5-氟胞嘧啶和胞嘧啶胞嘧啶的组合的抗肿瘤剂。 对于试剂的实际给药程序,优选以首先在体内任何部位施用5-氟胞嘧啶的方式进行,然后将细胞内氨基甙酶施用于局部受累部位。 将所施用的5-氟胞嘧啶转移到受损部分中,5-氟胞嘧啶受细胞胞嘧啶酶的作用影响,将前者化合物转化为5-氟尿嘧啶,导致肿瘤组织的坏死。

    3(2H)-pyridazinone derivatives, and their uses in insecticidal
compositions
    2.
    发明授权
    3(2H)-pyridazinone derivatives, and their uses in insecticidal compositions 失效
    3(2H) - 哒嗪酮衍生物及其在杀虫组合物中的用途

    公开(公告)号:US4910201A

    公开(公告)日:1990-03-20

    申请号:US075725

    申请日:1987-07-20

    摘要: Novel 3(2H)-pyridazinone derivatives of the formula (I): ##STR1## wherein, X represents a halogen, an alkyl, a haloalkyl, a haloalkoxy atoms, NO.sub.2, an alkoxy or ##STR2## (wherein, R represents an alkyl); n is 1 to 4;A represents hydrogen, a halogen, an alkyl or an alkoxy;B represents CX.sub.1 (wherein, X.sub.1 represents H or a halogen) or N;R.sup.1 and R.sup.2 represent each independently H or an alkyl;E represents H, a halogen, an alkoxy or --OH; andQ represents: ##STR3## (wherein, Y represents a halogen, an alkyl, an alkoxy, a haloalkyl, a haloalkoxy, CN, ##STR4## (wherein, Z represents a halogen, an alkyl, an alkoxy or a haloalkyl atoms, and l is 0, 1 to 5, said Z being the same or different when l is 2 to 5); and m is 1 to 5, said Y being the same or different when n is 2 to 4. A process for preparation of said derivatives is also provided. These derivatives are useful as an active ingredient of insecticidal composition.

    摘要翻译: 式(I)的新型3(2H) - 哒嗪酮衍生物:其中X表示卤素,烷基,卤代烷基,卤代烷氧基,NO 2,烷氧基或(其中,R 表示烷基); n为1〜4; A表示氢,卤素,烷基或烷氧基; B表示CX1(其中,X1表示H或卤素)或N; R 1和R 2各自独立地表示氢或烷基; E表示H,卤素,烷氧基或-OH; 和Q表示:其中Y表示卤素,烷基,烷氧基,卤代烷基,卤代烷氧基,CN,其中Z表示 卤素,烷基,烷氧基或卤代烷基,l为0,1至5,当l为2至5时所述Z相同或不同); m为1至5,所述Y为相同或 n为2〜4时不同。还提供了制备所述衍生物的方法,这些衍生物可用作杀虫组合物的活性成分。

    PROCESS FOR CONTINUOUS MODIFICATION OF DIHYDRATE GYPSUM AND MODIFIED DIHYDRATE GYPSUM OBTAINED BY THE PROCESS
    3.
    发明申请
    PROCESS FOR CONTINUOUS MODIFICATION OF DIHYDRATE GYPSUM AND MODIFIED DIHYDRATE GYPSUM OBTAINED BY THE PROCESS 有权
    连续改性二羟乙酸钙和改性二羟乙酸酯工艺的方法

    公开(公告)号:US20110135930A1

    公开(公告)日:2011-06-09

    申请号:US13055891

    申请日:2009-07-31

    IPC分类号: C01F11/46

    摘要: Disclosed is a process for the continuous modification of dihydrate gypsum. The process includes a hemihydration step of calcining the dihydrate gypsum as a raw material into hemihydrate gypsum and a recrystallization step of hydrating and recrystallizing the hemihydrate gypsum in an aqueous slurry to convert the hemihydrate gypsum into modified dihydrate gypsum of a crystalline form different from the dihydrate gypsum as the raw material. In the recrystallization step, the aqueous slurry in a recrystallization reaction tank is maintained at a constant temperature under stirring such that the aqueous slurry becomes uniform, and a feed rate of the hemihydrate gypsum to the recrystallization reaction tank and a discharge rate of the recrystallized and modified dihydrate gypsum from the recrystallization reaction tank are controlled such that the feed rate and the discharge rate become substantially equal to each other, whereby the feeding of the hemihydrate gypsum and the discharging of the recrystallized and modified dihydrate gypsum are conducted continuously or intermittently. According to the process, dihydrate gypsum as a starting raw material can be converted into high-purity, modified dihydrate gypsum of large crystals by recrystallizing the starting dihydrate gypsum after it is once calcined into hemihydrate gypsum although such modified dihydrate gypsum is not available in general.

    摘要翻译: 公开了连续改性二水石膏的方法。 该方法包括将二水石膏作为原料煅烧成半水石膏的半水合步骤和将水泥浆中的半水石膏水合和重结晶以将半水合石膏转化成不同于二水合物的结晶形式的改性二水石膏的重结晶步骤 石膏为原料。 在再结晶步骤中,将再结晶反应槽中的含水浆料在搅拌下保持在恒定温度,使得水性浆液变得均匀,并且半水石膏对再结晶反应槽的进料速率和再结晶和 控制来自再结晶反应槽的改性二水石膏使得进料速率和排出速率基本上彼此相等,从而连续地或间歇地进行半石膏的供给和再结晶和改性的二水合石膏的排出。 根据该方法,作为起始原料的二水石膏可以在一次煅烧成半水石膏之后,将起始二水石膏重结晶,可以转化为大晶体的高纯度,改性二水石膏,尽管这种改性二水石膏一般不可用 。

    Process for continuous modification of dihydrate gypsum and modified dihydrate gypsum obtained by the process
    10.
    发明授权
    Process for continuous modification of dihydrate gypsum and modified dihydrate gypsum obtained by the process 有权
    通过该方法获得的二水石膏和改性二水石膏的连续改性方法

    公开(公告)号:US08529863B2

    公开(公告)日:2013-09-10

    申请号:US13055891

    申请日:2009-07-31

    IPC分类号: C01F11/46

    摘要: Disclosed is a process for the continuous modification of dihydrate gypsum. The process includes a hemihydration step of calcining the dihydrate gypsum as a raw material into hemihydrate gypsum and a recrystallization step of hydrating and recrystallizing the hemihydrate gypsum in an aqueous slurry to convert the hemihydrate gypsum into modified dihydrate gypsum of a crystalline form different from the dihydrate gypsum as the raw material. In the recrystallization step, the aqueous slurry in a recrystallization reaction tank is maintained at a constant temperature under stirring such that the aqueous slurry becomes uniform, and a feed rate of the hemihydrate gypsum to the recrystallization reaction tank and a discharge rate of the recrystallized and modified dihydrate gypsum from the recrystallization reaction tank are controlled such that the feed rate and the discharge rate become substantially equal to each other, whereby the feeding of the hemihydrate gypsum and the discharging of the recrystallized and modified dihydrate gypsum are conducted continuously or intermittently. According to the process, dihydrate gypsum as a starting raw material can be converted into high-purity, modified dihydrate gypsum of large crystals by recrystallizing the starting dihydrate gypsum after it is once calcined into hemihydrate gypsum although such modified dihydrate gypsum is not available in general.

    摘要翻译: 公开了连续改性二水石膏的方法。 该方法包括将二水石膏作为原料煅烧成半水石膏的半水合步骤和将水泥浆中的半水石膏水合和重结晶以将半水合石膏转化成不同于二水合物的结晶形式的改性二水石膏的重结晶步骤 石膏为原料。 在再结晶步骤中,将再结晶反应槽中的含水浆料在搅拌下保持在恒定温度,使得水性浆液变得均匀,并且半水石膏对再结晶反应槽的进料速率和再结晶和 控制来自再结晶反应槽的改性二水石膏使得进料速率和排出速率基本上彼此相等,从而连续地或间歇地进行半石膏的供给和再结晶和改性的二水合石膏的排出。 根据该方法,作为起始原料的二水石膏可以在一次煅烧成半水石膏之后,将起始二水石膏重结晶,可以转化为大晶体的高纯度,改性二水石膏,尽管这种改性二水石膏一般不可用 。