3-(1-methylindol-3-yl)-4-[3-((R)-2,2-dimethyl-1,3-dioxolan-4-ylmethyloxy)phenyl]-pyrrole-2,5-dione 、
3-(1-methylindol-3-yl)-4-[4-((R)-2,2-dimethyl-1,3-dioxolan-4-ylmethyloxy)phenyl]-1H-pyrrole-2,5-dione 生成 3-(1-methylindol-3-yl)-4-{4-[((R)-2-hydroxy-2-hydroxymethyl)ethyloxy]-phenyl }-1H-pyrrole-2.5-dione