bilirubin-IXα bis-tetra-n-butylammonium salt 、
碘乙烷 以
丙酮 为溶剂,
反应 0.33h,
以1.5%的产率得到3-{2-{3-(2-Ethoxycarbonyl-ethyl)-4-methyl-5-[3-methyl-5-oxo-4-vinyl-1,5-dihydro-pyrrol-(2Z)-ylidenemethyl]-1H-pyrrol-2-ylmethyl}-4-methyl-5-[4-methyl-5-oxo-3-vinyl-1,5-dihydro-pyrrol-(2Z)-ylidenemethyl]-1H-pyrrol-3-yl}-propionic acid ethyl ester