Modified nucleoside phosphoramidites

    公开(公告)号:US12030907B2

    公开(公告)日:2024-07-09

    申请号:US17514168

    申请日:2021-10-29

    IPC分类号: C07H19/10 C07H1/00 C07H19/20

    CPC分类号: C07H19/10 C07H1/00 C07H19/20

    摘要: A method of making a compound represented by Formula (I):




    includes a reducing step, a protecting step, and a phosphitylating step, where X is NH; Y is OCF3, —O(CR42)aCR43, —O(CR42)bOCR43, or —O(CR42)b—CR4═CR42; Z is H; B is adenine (A), guanine (G), thymine (T), cytosine (C), uracil (U), 5-methylcytosine (5-me-C), or a protected version of A, G, T, C, U, or 5-me-C; each R1 is independently C1-6 alkyl or cycloalkyl; R2 is CH2CH2CN or C1-6 alkyl; or R1 and R2 together form an optionally substituted C1-6 cycloalkyl; R3 is H or PG; PG is a protecting group; R4 is independently in each instance H or F; a is 1 or 2; and b is 1, 2, or 3.