3-(1-methyl-3-indolyl)-4-<1-<3-(methylsulfonyloxy)propyl>-3-indolyl>-1H-pyrrole-2,5-dione 、
2-巯基嘧啶 以there were obtained 45 mg of 3-(1-methyl-3-indolyl)-4-[1-[3-(2-pyrimidinylthio)propyl]-3-indolyl]-1H-pyrrole-2,5-dione, m.p. 125°-127° C.的产率得到3-(1-methyl-3-indolyl)-4-[1-[3-(2-pyrimidinylthio)propyl]-3-indolyl]-1H-pyrrole-2,5-dione