(8E)-8-[(dimethylamino)methylene]-4-[2-(4-nitrophenyl)ethoxy]-5,8-dihydro[1]benzothieno[2,3-d]pyrimidin-7(6H)-one 、
1-t-Butoxycarbonyl-2(2-hydroxyethyl)hydrazine 以The desired product was obtained as a yellow solid (3.82 g, 53%)的产率得到2-{6[2-(4-Nitro-phenyl)-ethoxy]-4,5-dihydro-10-thia-2,3,7,9-tetraaza-cyclopenta[a]fluoren-3-yl}-ethanol