A diastereoselective oxa-Pictet-Spengler-based strategy for (+)-frenolicin B and epi-(+)-frenolicin B synthesis.
Zhang Y, Wang X, Sunkara M, Ye Q, Ponomereva LV, She QB, Morris AJ, Thorson JS. A diastereoselective oxa-Pictet-Spengler-based strategy for (+)-frenolicin B and epi-(+)-frenolicin B synthesis. Org Lett. 2013 Nov 01; 15(21):5566-9.