CHEMISTRY OF DENUDATINE Ⅲ. REARRANGEMENT OF DENUDATINE

摘要

Treatment of denudatine 1 with 10％ HCl soln. at 30-40℃ for 1 day leads to another rearrangement product 3 along with a pair of epimers 2A and 2B. Upon adding a little EtOH in the reaction solution, only a pair of epimers 4A and 4B were obtained along with the unchanged starting material.