1: N-lt;(11H-dibenzlt;b,egt;azepin-6-yl)methylgt;phthalimide With sodium tetrahydroborate in methanol; water; isopropyl alcohol; toluene T=20 - 30°C; 24.5 h; 2: With hydrogenchloride in water; isopropyl alcohol T=20 - 80°C; 1.5 h; 3: (2E)-but-2-enedioic acid With sodium hydroxide Product distribution / selectivity; more than 3 stages;

in methanol T=35 - 40°C; 1.5 - 1.66667 h;

sodium hydroxide in water T=25 - 30°C; 0.5 h;