A concise synthesis of the antibiotic coumermycin A1, a natural product isolated from streptomyces, was achieved. In a key step, a selectively protected noviose sugar was prepared from novobiocin through a transglycosylation reaction with acetone.
简洁地合成了从链霉菌中分离得到的天然产物抗生素coumermycin A 1。在关键步骤中,通过与丙酮的糖基转移反应从新霉素制备了选择性保护的新糖。