2-Dienylphenacyloxazolones and an intramolecular Diels–Alder approach to the A–B–C ring system of phenanthridone alkaloids
作者:Faith Corbo Gaenzler、Chen (Lisa) Guo、Yun-Wei Zhang、Mohammad E. Azab、Mounir A.I. Salem、Dong Ping Fan、Michael B. Smith
DOI:10.1016/j.tet.2009.08.066
日期:2009.10
A general route to the A–B–C ringsystem of phenanthridone alkaloids is available by acylation of 2-oxa-zolone with a 2-butadienylbenzoic acid derivative, followed by an intramolecularDiels–Alderreaction and hydrolysis.