Oligonucleotide synthesis. 10. (8-Quinolinesulfonyl)tetrazole: a new type of highly efficient coupling agent for the synthesis of ribooligonucleotides by the phosphotriester approach
4-CHLOROPHENYL 5-CHLORO-8-QUINOLYL HYDROGEN PHOSPHATE: A USEFUL PHOSPHORYLATING AGENT FOR GUANOSINE 3′-PHOSPHOTRIESTER
作者:Hiroshi Takaku、Kazuo Kamaike、Kenichi Kasuga
DOI:10.1246/cl.1982.197
日期:1982.2.5
O-tetrahydropyranyl-N2-benzoylguanosine smoothly reacts with 4-chlorophenyl 5-chloro-8-quinolyl hydrogen phosphate in the presence of 8-quinolinesulfonyltetrazolide (QS-te) to give 5′-O-dimethoxytrityl-2′-O-tetrahydropyranyl-N2-benzoylguanosine 3′-(4-chlorophenyl, 5-chloro-8-quinolyl) phosphate in high yield without a side product such as O6-phosphorylated guanosine.
Oligonucleotide synthesis. Part 21. Synthesis of ribooligonucleotides using the 4-methoxybenzyl group as a new protecting group for the 2'-hydroxyl group