[(4S,5S)-5-[(7-methoxy-9-oxothioxanthene-2-carbonyl)oxymethyl]-2,2-dimethyl-1,3-dioxolan-4-yl]methyl 7-methoxy-9-oxothioxanthene-2-carboxylate 在
草酰氯 作用下,
以
xylene 为溶剂,
反应 48.0h,
生成 (1Z,17S,21S)-5,33-dimethoxy-19,19-dimethyl-15,18,20,23-tetraoxa-9,29-dithiaoctacyclo[23.10.2.210,13.02,11.03,8.017,21.028,36.030,35]nonatriaconta-1,3(8),4,6,10,12,25(37),26,28(36),30(35),31,33,38-tridecaene-14,24-dione