6-benzylamino-2-benzyloxy-5-cyclopropyl-7,9-difluoro-8-(4-methyl-piperazin-1-yl)-1,2,3,5-tetrahydro-pyrimido[1,6-a]benzimidazole-1,3-dione 、
溶剂黄146 、
乙醇 在
钯 水 作用下,
以affording 0.32 g of 9-amino-5-cyclopropyl-6,8-difluoro-7-(4-methyl-1-piperazinyl)-2-hydroxy-pyrimido[1,6-a]benzimidazole-1,3-(2H, 5H)-dione as colorless crystals (80%)的产率得到Ro 46-7864