Supports useful in solid phase synthesis of oligonucleotides
    1.
    发明授权
    Supports useful in solid phase synthesis of oligonucleotides 失效
    支持寡核苷酸的固相合成

    公开(公告)号:US4780504A

    公开(公告)日:1988-10-25

    申请号:US871451

    申请日:1986-06-05

    CPC分类号: C07H21/00

    摘要: Novel supports useful in solid phase synthesis of oligonucleotides of the formula ##STR1## wherein .circle. is micro pellets of a material selected from the group consisting of glass, silica, Kieselguhr, polytetrafluoroethylene, cellulose and metallic oxides, m is an integer from 1 to 20, A is selected from the group consisting of alkylene of 1 to 20 carbon atoms, saturated cycloalkylene of 3 to 12 carbon atoms, phenyl and 5 to 6 member heterocycles, x is an integer from 0 to 20, x.sub.1 is an integer from 0 to 10 and the amino group may be in the m-, p- or o-position, a process for the preparation of said supports, the use of said supports and intermediates.

    摘要翻译: 新颖的载体可用于下式的寡核苷酸的固相合成:其中&cir是选自玻璃,二氧化硅,硅藻土,聚四氟乙烯,纤维素和金属氧化物的材料的微丸,m是 A为1至20的整数,A选自1至20个碳原子的亚烷基,3至12个碳原子的饱和环亚烷基,苯基和5至6个成员杂环,x为0至20的整数,x1 是0至10的整数,并且氨基可以在m-,p-或o-位,制备所述载体的方法,所述载体和中间体的用途。

    Supports and their use
    2.
    发明授权
    Supports and their use 失效
    支持及其使用

    公开(公告)号:US4812512A

    公开(公告)日:1989-03-14

    申请号:US878611

    申请日:1986-06-26

    IPC分类号: C07H21/02 C07H21/00 C07H21/04

    CPC分类号: C07H21/00

    摘要: Novel supports useful in solid phase synthesis of oligonucleotides of the formula ##STR1## wherein .circle.P is a material selected from the group consisting of functionalized glass micropellets, silica functionalized by aminoalkyl trialkoxysilane capable of to obtain for ##STR2## Kieselguhr, polytetrafluoroethylene, cellulose and metallic oxides, m is an integer from 1 to 20, A is selected from the group consisting of alkyl of 1 to 20 carbon atoms, saturated cycloalkyl of 3 to 12 carbon atoms, phenyl and 5 to 6 member heterocycles, x and y are an integer from 0 to 20, x.sub.1 is an integer from 1 to 20 and y.sub.1 is an integer from 0 to 10, a process for the preparation of said supports, the use of said supports and intermediates.

    摘要翻译: 新颖的载体可用于固相合成下式的寡核苷酸,其中&cir&P是选自官能化的玻璃微丸,由能够获得 Kieselguhr的氨基烷基三烷氧基硅烷官能化的二氧化硅的材料, 聚四氟乙烯,纤维素和金属氧化物,m是1至20的整数,A选自1至20个碳原子的烷基,3至12个碳原子的饱和环烷基,苯基和5至6个成员杂环,x y为0〜20的整数,x1为1〜20的整数,y1为0〜10的整数,制备所述载体的方法,所述载体和中间体的使用。

    Epimerization of trans chrysanthemates
    3.
    发明授权
    Epimerization of trans chrysanthemates 失效
    反式菊花异构化

    公开(公告)号:US4447637A

    公开(公告)日:1984-05-08

    申请号:US347278

    申请日:1982-02-09

    摘要: A novel process for the epimerization of alkyl trans chrysanthemates comprising reacting at a low temperature in an anhydrous organic solvent an alkyl trans chrysanthemate of the formula ##STR1## of the 1S, trans or 1R, trans configuration wherein R is alkyl of 1 to 6 carbon atoms with a strong alkali metal base to obtain a compound of the formula ##STR2## wherein R has the above definition and M is an alkali metal, reacting the latter compound with a reactant of the formulaY--Awherein A is selected from the group consisting of chlorine, bromine, iodine and anion derived from a hydrogen acid and Y is an organic radical capable of forming a ketal of a ketene to obtain a compound of the formula ##STR3## reacting the latter at a low temperature in an anhydrous organic solvent with a proton donor to obtain a mixture of the corresponding alkyl cis chrysanthemate and alkyl trans chrysanthemate and recovering the cis chrysanthemic acid of the formula ##STR4## with the 1R, cis or 1S, cis configuration.

    摘要翻译: 一种用于烷基反式菊氨酸差向异构化的新方法,其包括在低温下在无水有机溶剂中反应1S,反式或1R,反式构型的式II的烷基反式菊酯,其中R是1至6的烷基 具有强碱金属碱的碳原子以得到式III的化合物,其中R具有上述定义,M是碱金属,使后一化合物与式YA的反应物反应,其中A选自 由氯,溴,碘和由氢酸衍生的阴离子组成,Y是能够形成乙烯酮缩酮的有机基团,得到下式的化合物,其中IV在低温下与无水有机物 溶剂与质子供体反应,得到相应的顺式菊酸菊酯和反式菊酸酯的混合物,并用1R,顺式或1S的方法回收式Ⅰ的顺式菊酸, 顺式配置。