叔丁醇钾与二氯甲烷 对氯甲基苯乙烯的对氯甲基苯乙烯上下游产品信息

翻译语句 1，3，5-tri-O-benzoyl-2-deoxy-2-fluoro-α-D-arabinose in dichloromethane as solvent，ethanol and 40%HBr solution reacti...