Numerous deoxy-azido sugars 3 were prepared by the reaction of tosyl/bromo sugars with NaN3 in dry DMF under heating condition. The 1,3-dipolar cycloaddition of deoxy-azido sugars 3 with ethisterone 4 to afford regioselective triazole-linked ethisterone glycoconjugates 5 was investigated in the presence of CuI and DIPEA in dichloromethane or CuSO4 center dot 5H(2)O and sodium ascorbate in aqueous medium. All the developed compounds were characterized by spectroscopic analysis (IR, H-1 & C-13 NMR, and MS spectra). Structure of triazolyl ethisterone glycoconjugate 5a has been further confirmed by its Single Crystal X-ray analysis. (C) 2013 Elsevier Ltd. All rights reserved.
机构:
Dong A Univ, Dept Chem, Pusan 604714, South Korea
Dong A Univ, Dept Med Biosci, Pusan 604714, South KoreaDong A Univ, Dept Chem, Pusan 604714, South Korea
Lee, Jae Wook
Han, Seung Choul
论文数: 0引用数: 0
h-index: 0
机构:
Dong A Univ, Dept Chem, Pusan 604714, South Korea
Dong A Univ, Dept Med Biosci, Pusan 604714, South KoreaDong A Univ, Dept Chem, Pusan 604714, South Korea
Han, Seung Choul
Kim, Byoung-Ki
论文数: 0引用数: 0
h-index: 0
机构:
Dong A Univ, Dept Chem, Pusan 604714, South Korea
Dong A Univ, Dept Med Biosci, Pusan 604714, South KoreaDong A Univ, Dept Chem, Pusan 604714, South Korea
Kim, Byoung-Ki
Lee, Un Yup
论文数: 0引用数: 0
h-index: 0
机构:
Dong A Univ, Dept Chem, Pusan 604714, South Korea
Dong A Univ, Dept Med Biosci, Pusan 604714, South KoreaDong A Univ, Dept Chem, Pusan 604714, South Korea
Lee, Un Yup
Sung, Sae Reum
论文数: 0引用数: 0
h-index: 0
机构:
Dong A Univ, Dept Chem, Pusan 604714, South Korea
Dong A Univ, Dept Med Biosci, Pusan 604714, South KoreaDong A Univ, Dept Chem, Pusan 604714, South Korea
Sung, Sae Reum
Kang, Hwa-Shin
论文数: 0引用数: 0
h-index: 0
机构:
Dong A Univ, Dept Chem, Pusan 604714, South Korea
Dong A Univ, Dept Med Biosci, Pusan 604714, South KoreaDong A Univ, Dept Chem, Pusan 604714, South Korea
Kang, Hwa-Shin
Kim, Ji Hyeon
论文数: 0引用数: 0
h-index: 0
机构:
Kyungwon Univ, Dept Chem & Bio Engn, Songnam 461701, South KoreaDong A Univ, Dept Chem, Pusan 604714, South Korea