发明名称 |
METHOD OF SYNTHESIS OF 2',3'-DIDEOXY-3'-THIACYTYDINE OR 2',3'- -DIDEOXY-3'-THIA-5-FLUOROCYTIDINE, NUCLEOSIDE ENRICHED WITH ENANTIOMER, METHOD OF SYNTHESIS OF 1,3-OXATHIOLANE, METHOD OF SYNTHESIS OF 2-ACYLOXY-5-ACYLOXY-1,3-OXATHIOLANE ENRICHED WITH ENANTIOMER, ENANTIOMERS, METHOD OF CLEAVAGE OF NUCLEOSIDE ENANTIOMERS |
摘要 |
FIELD: organic chemistry, virology. SUBSTANCE: invention relates to methods of synthesis and compositions for producing antiviral nucleoside analogs, in part, 2',3'-dideoxy- -3'-thiacytidine (BCH-189). BCH-189 and 2', 3'-dideoxy-3'-thia- -5-fluorocytidine are synthesized mainly by interaction of 1,3-oxathiolane of the formula (I) beta- where R - hydroprotective group and R' - acyl group with a base taken from a group involving silylated cytosine or 5-fluorocytosine in the presence of SnCl<SB>4</SB>. This synthesis way provides stereoselective producing biologically active isomer of beta--BCH-189 and related compounds. Moreover, stereochemistry at position 4 of nucleoside can be controlled for producing <EMI ID=0.201 HE=9 WI=42 TI=CHI>-BCH-189 enriched with enantiomer and its analogs. EFFECT: improved method of synthesis. 27 cl, 4 dwg |
申请公布号 |
RU2125558(C1) |
申请公布日期 |
1999.01.27 |
申请号 |
RU19920016627 |
申请日期 |
1991.01.31 |
申请人 |
EHMORI JUNIVERSITI |
发明人 |
LAJOTT DENNIS TS;CHOJ VU-BIG |
分类号 |
A61K31/505;A61K;A61K31/00;A61K31/39;A61K31/513;A61K31/695;A61K31/7064;A61K31/7068;A61P31/12;A61P31/18;C07D;C07D239/02;C07D327/04;C07D405/04;C07D411/04;C07D451/00;C07F7/18;C07H19/06;C07H19/10;C12P19/38;C12P41/00;(IPC1-7):C07D239/02 |
主分类号 |
A61K31/505 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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