7-(5-chloro-2-fluorophenyl)-4-methyl-5,6,7,8-tetrahydrocinnolin-5-one   、                                                                                      
肼甲酰亚胺酰胺一氯化氢   、                                                                                      
盐酸                                                                                                                                                              在
                                                                                                                                                                                 
7-(5-chloro-2-fluorophenyl)-5-guanidinoimino-4-methyl-5,6,7,8-tetrahydrocinnoline dihydrochloride                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                    反应 2.0h,
                                                                                                                以to give 7-(5-chloro-2-fluorophenyl)-5-guanidinoimino-4-methyl-5,6,7,8-tetrahydrocinnoline hydrochloride (Compound 175) (0.345 g) as blue gray crystals的产率得到7-(5-chloro-2-fluorophenyl)-5-guanidinoimino-4-methyl-5,6,7,8-tetrahydrocinnoline dihydrochloride