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    • 26. 发明授权
    • Solid support reagents for the synthesis of 3'-Nitrogen containing
polynucleotides
    • 用于合成含3'-氮的多核苷酸的固体支持试剂
    • US5552471A
    • 1996-09-03
    • US293637
    • 1994-08-17
    • Sam L. WooSteven Fung
    • Sam L. WooSteven Fung
    • C12N15/09C07C217/20C07C271/10C07C271/16C07C271/66C07C317/18C07C333/04C07H21/00C07H21/04C03C12/00C08L25/06
    • C07H21/00Y02P20/55
    • The compounds are exemplified by the class of sulfoethyl oxygen-substituted carbamates, such compounds being useful as support reagents for automated polynucleotide synthesis of 3'-nitrogen functionalized polynucleotides. The invention includes, in one aspect, a polynucleotide synthesis reagent having the structure: ##STR1## where T is an acid-cleavable hydroxyl protecting group, e.g., 4,4'-dimethoxytritil; Q is a linker connecting the nitrogen and oxygen, e.g., n-hexyl; R.sub.1 is a nitrogen substituent, e.g., hydrogen; R.sub.2 through R.sub.4 are separately hydrogen or lower alkyl; Y is an atom which is electronegative with respect to carbon, e.g., oxygen or sulfur; X.sub.1 is an atom which is electronegative with respect to carbon, e.g., sulfone; Z is a bond or spacer arm, e.g., ethylsuccinate; and W is a derivatized solid synthesis support capable of linking to Z, e.g., an amino-dirivitized controlled pore glass. In a second aspect, the present invention includes a polynucleotide synthesis reagent having the structure: ##STR2## where T, Q, R.sub.1, R.sub.2 -R.sub.3, X.sub.2, Z, and W are as defined above.
    • 所述化合物的例子是磺乙氧基取代的氨基甲酸酯类,这些化合物可用作3'-氮官能化多核苷酸的自动多核苷酸合成的载体试剂。 在一个方面,本发明包括具有以下结构的多核苷酸合成试剂:其中T是酸可裂解的羟基保护基,例如4,4'-二甲氧基苦味; Q是连接氮和氧的接头,例如正己基; R1是氮取代基,例如氢; R2至R4分别为氢或低级烷基; Y是相对于碳例如氧或硫具有电负性的原子; X1是相对于碳电负性的原子,例如砜; Z是键或间隔臂,例如乙基琥珀酸盐; 并且W是能够与Z连接的衍生的固体合成载体,例如氨基 - 二硝基化的受控孔玻璃。 在第二方面,本发明包括具有以下结构的多核苷酸合成试剂:其中T,Q,R 1,R 2,R 3,X 2,Z和W如上所定义。