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D-Riboside의 Sulfation 합성 연구: D-Riboside와 Methoxyethoxymethy1 Chloride의 고리화 반응
조인행 建國大學校 自然科學硏究所 1997 建國自然科學硏究誌 Vol.8 No.-
Methyl 5-deoxy-5-phthalimido-β-D-riboside which contains a protected amino group at C-5, was synthesized starting from D-ribose. Selective protection of 2- or 3- hydroxy1 group was attempted by the reaction of riboside 2,3-O-stannylene acetal with methoxyethoxymethy1 chloride. The product was a riboside 2,3-O-methylene acetal, not one of the selective protected methoxyethoxymethy1 ether. The mechanism of unexpected cyclization was discussed.