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 PHOSPHOROCHLORIDATE: A PRACTICALLY USEFUL PHOSPHORYLATING AGENT FOR OLIGORIBONUCLEOTIDE SYNTHESIS VIA PHOSPHOTRIESTER APPROACH
作者:Hiroshi Takaku、Masatoshi Yoshida、Kazuo Kamaike、Tsuiiaki Hata
DOI:10.1246/cl.1981.197
日期:1981.2.5
5′-O-Dimethoxytrityl-2′-O-tetrahydropyranylnucleosides (2) smoothly reacts with 4-chlorophenyl 5-chloro-8-quinolyl phosphorochloridate (1) prepared from 4-chlorophenyl phosphodichloridate and 5-chloro-8-hydroxyquinoline to give 5′-O-dimethoxytrityl-2′-O-tetrahydropyranylnucleoside 3′-(4-chlorophenyl, 5-chloro-8–quinolyl) phosphates (3) in high yields. They are key intermediates for the synthesis of
4-CHLOROPHENYL 5-CHLORO-8-QUINOLYL PHOSPHOROTETRAZOLIDE: A HIGHLY EFFICIENT PHOSPHORYLATING AGENT FOR OLIGORIBONUCLEOTIDE SYNTHESIS
作者:Hiroshi Takaku、Tadaaki Nomoto、Kazuo Kamaike
DOI:10.1246/cl.1981.543
日期:1981.4.5
phosphorotetrazolide (2) was a highly efficient phosphorylating agent for the synthesis of 5′-O-dimethoxytrityl-2′-O-tetrahydropyranylnucleoside 3′-(4-chlorophenyl, 5-chloro-8-quinolyl) phosphates (4). The fully protected ribonucleoside 3′-phosphotriesters 4 are key intermediates for the synthesis of oligoribonucleotides via phosphotriesterapproach.