(1beta)-7-Ethoxy-6,6',12-trimethoxy-2,2'-dimethylberbaman 118160-59-1 7-O-Efc 7-O-Ethyl fangchinoline 7-O-Ethylfangchinoline Berbaman, 7-ethoxy-6,6',12-trimethoxy-2,2'-dimethyl-, (1beta)- Tjn 220