反应详情

Following the procedure of Example 1, reaction of one equivalent of 1-chloro-4-methylpyridazino[4,5-b]indolizine and 27 equivalents of 4-(2-aminoethyl)morpholine gave the title compound as the free base which was converted to the dihydrochloride salt (MeOH/ethereal HCl/diethyl ether), mp 310° C. (dec).