4th 2009 Annual Meeting of Korean Society for Glycoscience in 2009 (2009.11)바로가기
페이지
pp.66-66
저자
Mi Young Kim, Kwan Soo Kim
언어
영어(ENG)
URL
https://www.earticle.net/Article/A192555
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원문정보
초록
영어
Previously, we reported an efficient one-pot direct glycosylation method with anomeric hydroxy sugars as glycosyl donors and phthalic anhydride and Tf₂O as activating agents. Although this method is very efficient for the selective β-mannosylation and other glycosylations, in certain cases, undesired self-condensed esters were generated as minor products. In order to suppress the generation of the self-condensed ester, 4,5-dimethoxyphthalic anhydride, 2,3-pyridinedicarboxylic anhydride, 3,4-pyridinedicarboxylic anhydride, and 4-methylphthalic anhydride were examined as activating agents instead of phthalic anhydride. 2,3-Pyridinedicarboxylic anhydride provided the best result and the improved glycosylation was carried out in three steps (ⅰ) the reaction of anomeric hydroxy sugars with 2,3-pyridinedicarboxylic anhydride in the presence of DBU at room temperature, (ⅱ) addition of Tf₂O at -40 ℃, and (ⅲ) addition of glycosyl acceptors to the reaction mixture at -40 ℃.
저자
Mi Young Kim [ Center for Bioactive Molecular Hybrids (CBMH) and the Department of Chemistry, Yonsei University, Seoul ]
Kwan Soo Kim [ Center for Bioactive Molecular Hybrids (CBMH) and the Department of Chemistry, Yonsei University, Seoul ]
본 학회는 화학, 생화학, 분자생물학, 미생물학, 식품공학, 의학, 약학, 유전공학 및 생물공학, 환경 및 기타 공업 등 전 분야의 탄수화물관련 이론과 기술을 연구 발전시키고 산학협동을 통해 이를 보급하여 국내 관련 산업의 발전 및 국민생활의 과학화에 기여하고자 하며, 이러한 목표와 비젼의 실현을 위해 회원들이 적극적인 참여와 활동을 전개하고자 한다.
간행물
간행물명
한국당과학회 학술대회
간기
연간
수록기간
2006~2022
십진분류
KDC 517DDC 614
이 권호 내 다른 논문 / 한국당과학회 학술대회 4th 2009 Annual Meeting of Korean Society for Glycoscience in 2009