甲醇

dimethyl 2-(2-(2-benzoyl-5-(methylsulfonyl)-1H-pyrrol-1-yl)ethyl)malonate

2-(methylsulfonyl)-5-benzoylpyrrole

[1-[2-(4,6-dioxo-2,2-dimethyl-1,3-dioxan-5-yl)ethyl]-2-(methanesulfonyl)-5-(benzoyl)]-pyrrole