3.1.1.42 | synthesis |
development of a convenient one-pot procedure for conversion of 5-caffeoylquinic acid, from coffee beans, to 3-cyclohexylpropyl caffeate, which exhibits an antiproliferative effect toward various human tumor cells. The procedure comprises of two consecutive reactions by chlorogenate hydrolase from Aspergillus japonicus and Candida antarctica lipase B, and is performed using an ionic liquid, 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, as the reaction solvent, method optimization, overview. The system provides 12.8 mM 3-cyclohexylpropyl caffeate from 15 mM 5-caffeoylquinic acid with conversion yield of 85.3%. The reaction scarcely proceeds in 1-butyl-3-methylimidazolium tetrafluoroborate, evaluation of several ionic liquids, overview |
715954 |