Process for the synthesis of oligomeric phosphite, phosphodiester, phosphorothioate and phosphorodithioate compounds
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C07H-001/00
C07H-021/00
C07F-009/02
출원번호
US-0962175
(1997-10-31)
발명자
/ 주소
Ravikumar Vasulinga T.
출원인 / 주소
ISIS Pharmaceuticals, Inc.
대리인 / 주소
Woodcock Washburn Kurtz Mackiewicz & Norris LLP
인용정보
피인용 횟수 :
4인용 특허 :
12
초록
Synthetic processes are provided wherein oligomeric compounds are prepared having phosphodiester, phosphorothioate, and phosphorodithioate covalent linkages. Also provided are synthetic intermediates useful in such processes.
대표청구항▼
[ What is claimed is:] [1.] A method for the preparation of an oligomeric compound comprising a moiety having the Formula IX: [ STR 17 ] wherein: Z is CN, halogen, NO.sub.2, alkaryl, sulfoxyl, sulfonyl, thio, substituted sulfoxyl, substituted sulfonyl, or substituted thio, wherein the substituents a
[ What is claimed is:] [1.] A method for the preparation of an oligomeric compound comprising a moiety having the Formula IX: [ STR 17 ] wherein: Z is CN, halogen, NO.sub.2, alkaryl, sulfoxyl, sulfonyl, thio, substituted sulfoxyl, substituted sulfonyl, or substituted thio, wherein the substituents are selected from the group consisting of alkyl, aryl, or alkaryl; andX.sub.1 is O or S; comprising the steps of:(a) providing a compound having the Formula II: [ STR 18 ] wherein: each R.sub.1, is, independently, H, --OH, --F, or --O--X.sub.3 --D;X.sub.3 is alkyl having from 1 to 10 carbons;D is H, amino, protected amino, alkyl substituted amino, imidazole, or (--O--X.sub.3).sub.p, where p is 1 to about 10;each X.sub.2 is O or S;R.sub.3 and R.sub.3a are each hydrogen, a hydroxyl protecting group, or a linker connected to a solid support;each B, independently, is a naturally occurring or non-naturally occurring nucleobase or a protected naturally occurring or non-naturally occurring nucleobase;n is 0 to about 50;each Q is --X.sub.1 H or --X.sub.1 --CH.sub.2 --CH.dbd.CH--CH.sub.2 --Z;R.sub.5 is --N(R.sub.6).sub.2, or a heterocycloalkyl or heterocycloalkenyl ring containing from 4 to 7 atoms, and having up to 3 heteroatoms selected from the group consisting of nitrogen, sulfur, and oxygen;R.sub.6 is straight or branched chain alkyl having from 1 to 10 carbons;(b) reacting the compound of Formula II with a compound having the Formula III: [ STR 19 ] wherein R.sub.3a is hydrogen; and R.sub.2 is a hydroxyl protecting group, or a linker connected to a solid support, provided that R.sub.2 and R.sub.3 are not both simultaneously a linker connected to a solid support; to form the oligomeric compound.
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이 특허에 인용된 특허 (12)
Andrus William A. (San Francisco CA) Efcavitch J. William (Belmont CA) McBride Lincoln J. (Redwood City CA), Chemical capping by phosphitylation during oligonucleotide synthesis.
Yau Eric K. (Kirkland WA), S-(2,4-dichlorobenzyl)-b
상세보기
이 특허를 인용한 특허 (4)
Tang Jin-Yan ; Bongle Nandkumar ; Gonzalez Jose ; Schwartz Warren E., Extremely high purity oligonucleotides and methods of synthesizing them using dimer blocks.
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