Facile and efficient total synthesis of (±)-cryptotanshinone and tanshinone IIA
作者:Ying-Yan Jiang、Qian Li、Wei Lu、Jun-Chao Cai
DOI:10.1016/s0040-4039(03)00191-6
日期:2003.3
A concise synthesis of (+/-)-cryptotanshinone and tanshinone IIA from readily available 1,5-naphthalenediol is described in which the key step is the radical cyclization process promoted by SmI2 to make a furan ring. (C) 2003 Elsevier Science Ltd. All rights reserved.