Oxathiaphospholane Approach to the Synthesis of P-Chiral, Isotopomeric Deoxy(ribonucleoside phosphorothioate)s and Phosphates Labeled with an Oxygen Isotope
作者:Piotr Guga、Krzysztof Domański、Wojciech J. Stec
DOI:10.1002/1521-3773(20010202)40:3<610::aid-anie610>3.0.co;2-w
日期:2001.2.2
Diastereomerically pure and isotopically labeled 5'-O-DMT-nucleoside-3'-O-(2-thio- and -oxo-4,4-"spiro"-pentamethylene-1,3,2-[18 O]oxathiaphospholane)s were used for stereocontrolled synthesis of P-chiral, isotopically labeled oligonucleotide phosphorothioates and phosphates, as well as "chimeric" PS18 O/P18 O oligomers without loss of isotope enrichment. DBU=1,8-diazabicyclo[5.4.0]undec-7-ene, DMT=4
非对映体纯和经同位素标记的5'-O-DMT-核苷-3'-O-(2-硫代和-氧代-4,4-“螺”-戊亚甲基-1,3,2- [ 18 O]氧代磷杂环戊烷)将其用于P-手性,同位素标记的寡核苷酸硫代磷酸酯和磷酸酯以及“嵌合” PS 18 O / P 18 O低聚物的立体控制合成,而不会损失同位素富集。DBU = 1,8-二氮杂双环[5.4.0]十一碳-7-烯,DMT = 4,4′-二甲氧基三苯甲基,ROH = 3′-O-乙酰胸苷,Bz =苯甲酰基。