7-(2,5-dichlorothiophene-3-yl)-5-guanidinoimino-4-methyl-5,6,7,8-tetrahydroquinoline dihydrochloride 、
sodium methylate 在
水 、
(-)-7-(2,5-dichlorothiophen-3-yl)-5-guanidinoimino-4-methyl-5,6,7,8-tetrahydroquinoline 作用下,
以
甲醇 为溶剂,
反应 1.0h,
以to give (±)-7-(2,5-dichlorothiophen-3-yl)-5-guanidinoimino-4-methyl-5,6,7,8-tetrahydroquinoline (Compound 108) (32.8 g)的产率得到(-)-7-(2,5-dichlorothiophen-3-yl)-5-guanidinoimino-4-methyl-5,6,7,8-tetrahydroquinoline