4-dimethylpyridine（DMAP） was used as catalyst for preparing benzimidazolyl phenoxyacetic acid O-acetyllactopyranosyl saccharide carboxylate and triethylamine（Et3N） was used as deacid reagent.Three saccharide carbo...4-dimethylpyridine（DMAP） was used as catalyst for preparing benzimidazolyl phenoxyacetic acid O-acetyllactopyranosyl saccharide carboxylate and triethylamine（Et3N） was used as deacid reagent.Three saccharide carboxylates were synthesized from saccharide carboxylation at room temperature in the system of DMAP/Et3N with nitro-containing,trifluoromethyl benzimidazolyl phenoxyacetic acid with as lead compounds.The catalytic mechanism of DMAP/Et3N was discussed.The results showed that DMAP is a effective catalyst.The yields can reach over 52.7%.The test indicated that the compounds showed better antiviral activity against tobacco mosaie virus（TMV）.展开更多
文摘4-dimethylpyridine（DMAP） was used as catalyst for preparing benzimidazolyl phenoxyacetic acid O-acetyllactopyranosyl saccharide carboxylate and triethylamine（Et3N） was used as deacid reagent.Three saccharide carboxylates were synthesized from saccharide carboxylation at room temperature in the system of DMAP/Et3N with nitro-containing,trifluoromethyl benzimidazolyl phenoxyacetic acid with as lead compounds.The catalytic mechanism of DMAP/Et3N was discussed.The results showed that DMAP is a effective catalyst.The yields can reach over 52.7%.The test indicated that the compounds showed better antiviral activity against tobacco mosaie virus（TMV）.
