甲醇 、
esperamicin X 生成 methyl ((4S,9R,9aR,10R,12R)-4,9,12-trihydroxy-11-oxo-4,9-dihydro-2H-4,9a-propanonaphtho[2,3-b]thiophen-10-yl)carbamate 、 4,5-Dimethoxy-2-(2-methoxy-acryloylamino)-benzoic acid (2S,3R,4S,6R)-3-hydroxy-6-methoxy-2-methyl-tetrahydro-pyran-4-yl ester